{"title":"DFC Diesel","description":"\u003cp\u003eDFC Diesel is redefining what it means to run a remanufactured engine. Founded in 2010, DFC specializes in high-performance diesel engine rebuilds for Ford Powerstroke, Dodge\/Ram Cummins, and GM Duramax platforms—offering unmatched reliability, precision, and power at a more cost-effective price than OEM replacements. Built by diesel enthusiasts with exacting attention to detail, DFC engines are remanufactured to exceed OEM specs and backed by one of the most comprehensive warranties in the industry. Every engine reflects the pride, craftsmanship, and technical expertise of a team driven by quality, not shortcuts. As Canada’s largest diesel engine remanufacturer, DFC sets the benchmark for consistency, durability, and long-term performance—raising the bar for what truck owners can expect from a rebuilt powerplant.\u003cbr\u003e\u003c\/p\u003e","products":[{"product_id":"dfc-diesel-ss599497soalb-street-series-speed-of-air-long-block-std-auto-1994-1997-ram-5-9l-cummins-12v","title":"DFC Diesel SS599497SOALB Street Series Speed of Air Long Block (STD\/Auto) | 1994-1997 RAM 5.9L Cummins 12V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1994–1997 5.9L Cummins 12V engines\u003c\/li\u003e\n\u003cli\u003eComplete long block with top end gaskets\u003c\/li\u003e\n\u003cli\u003eIncludes reman cylinder head with new components\u003c\/li\u003e\n\u003cli\u003eBuilt with all new OEM or equivalent parts\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eFeatures ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eUses Cometic MLS multi-layer steel head gasket\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing in known leak areas\u003c\/li\u003e\n\u003cli\u003eUpgraded piston cooling reduces injector damage\u003c\/li\u003e\n\u003cli\u003e5-year\/160,000 km (100,000 mi) limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBreathe New Life Into Your 12-Valve Cummins\u003c\/h4\u003e\n\u003cp\u003eIf you're rebuilding a 1994–1997 5.9L Cummins 12V and want something that goes beyond stock reliability, the DFC Diesel Street Series Speed of Air Long Block is a powerhouse built to handle the demands of daily driving, towing, and even the weekend warrior’s need for speed. This isn’t a patch job or a slapped-together reman—it’s a completely re-engineered long block that comes assembled with precision and purpose. From the professionally machined block and bored cylinders to the remanufactured head packed with new valves, guides, seals, and hardened seats, every inch of this engine is optimized for durability and performance. It’s topped off with a complete top-end gasket kit, so you’re set up for a smooth install right out of the crate.\u003c\/p\u003e\n\u003ch4\u003eUpgraded Inside and Out for Lasting Performance\u003c\/h4\u003e\n\u003cp\u003eDFC’s Street Series isn’t just about bringing your engine back to life—it’s about addressing the weak points that plagued these motors from the factory. You’ll find upgraded sealing methods in the areas most prone to leaks, along with ARP or OptiTorque head studs to hold everything down under pressure. Each engine is assembled using only brand-name components that meet or exceed OEM specs, including Total Seal gapless piston rings and Cometic MLS head gaskets. Enhanced piston cooling helps prevent damage from overheated injectors, and the entire assembly is backed by one of the strongest warranties in the business—5 years or 160,000 kilometers. Whether your Cummins powers a hard-working tow rig or a clean street build, this long block delivers the reliability and peace of mind that serious diesel owners demand.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1994, 1995, 1996, 1997 Dodge RAM 5.9L Cummins 12V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51797686747420,"sku":"DDUSS599497SOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUSS599497SOALB_1.jpg?v=1746469859"},{"product_id":"ddu-th599497soalb-tow-haul-series-speed-of-air-long-block-std-auto-1994-1997-ram-5-9l-cummins-12v","title":"DFC Diesel TH599497SOALB Tow\/Haul Series Speed of Air Long Block (STD\/Auto) | 1994-1997 Dodge RAM 5.9L Cummins 12V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1994–1997 5.9L Cummins 12V engines\u003c\/li\u003e\n\u003cli\u003eBuilt for towing and performance up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eCometic MLS multi-layer steel head gasket\u003c\/li\u003e\n\u003cli\u003eStage 3 camshaft for increased performance\u003c\/li\u003e\n\u003cli\u003e60lb heavy-duty valve springs (1994–1998)\u003c\/li\u003e\n\u003cli\u003eManton HD push rods for added durability\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat resistance\u003c\/li\u003e\n\u003cli\u003eDry film coated piston skirts for wear protection\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal piston rings included\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block and head assembly\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt for the Load, Tuned for the Long Haul\u003c\/h4\u003e\n\u003cp\u003eIf your 1994–1997 5.9L Cummins 12-valve is more than just a weekend toy—if it’s hooked to a trailer, moving heavy loads, or tuned for serious grunt—the DFC Diesel Tow\/Haul Series Speed of Air Long Block (STD\/Auto) is the kind of engine you want under the hood. This isn’t your basic reman. It’s a purpose-built long block that combines the reliability of factory-fit machining with performance-focused upgrades that are made for work. Whether you're pulling a fifth wheel through the mountains or stacking up highway miles with a loaded trailer behind you, this engine is designed to keep the temps down, the power up, and the reliability right where you need it.\u003c\/p\u003e\n\u003ch4\u003eHeavy-Duty Components with Proven Performance\u003c\/h4\u003e\n\u003cp\u003eWhat separates this build from the standard Street Series is a list of serious enhancements made specifically for high-stress use. Inside, you’ll find ceramic-coated piston crowns and dry film-coated skirts—features that improve heat resistance and reduce friction where it matters most. The stage 3 camshaft and Manton heavy-duty pushrods pair with upgraded valve springs (60lb for 12-valve models like yours) to handle higher RPM and boost pressure without flinching. It’s all clamped together with ARP or OptiTorque head studs and sealed with a Cometic MLS gasket set. DFC also includes Total Seal gapless rings for better compression and longevity. Everything is machined on advanced Rottler equipment and backed by a 5-year, 160,000 km (100,000 mi) warranty, so you’re covered from the first startup to the last tow. For the Cummins owner who expects more than stock—this is the long block that’s ready to work as hard as you do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1994, 1995, 1996, 1997 Dodge RAM 5.9L Cummins 12V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51797810381084,"sku":"DDUTH599497SOALB","price":13894.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH599497SOALB_1.jpg?v=1746469693"},{"product_id":"dfc-diesel-th599497soalbhd-tow-haul-hd-series-speed-of-air-long-block-std-auto-1994-1997-ram-5-9l-cummins-12v","title":"DFC Diesel TH599497SOALBHD Tow\/Haul HD Series Speed of Air Long Block (STD\/Auto) | 1994-1997 Dodge RAM 5.9L Cummins 12V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1994–1997 5.9L Cummins 12V engines\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods for extreme strength\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth operation\u003c\/li\u003e\n\u003cli\u003eIncludes Fluidamper for vibration control\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate included for added durability\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow\/Haul upgrades\u003c\/li\u003e\n\u003cli\u003eBuilt for towing and high-power street use\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings standard\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket for maximum sealing\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year\/160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFor the Diesel Enthusiast Who Pushes Limits\u003c\/h4\u003e\n\u003cp\u003eIf you're building a 1994–1997 5.9L Cummins 12-valve that lives under heavy loads and isn’t afraid of horsepower, the DFC Diesel TH599497SOALBHD Tow\/Haul HD Series Long Block is exactly the foundation you need. This isn’t just a reman—it’s a purpose-built, high-performance long block designed for trucks that tow hard and drive harder. While it includes all the upgrades from the Street and standard Tow\/Haul series, the HD version turns it up a notch with serious internal fortifications like Wagler connecting rods, a Fluidamper harmonic balancer, and a heavy-duty flexplate. These upgrades work together with a balanced rotating assembly to keep things smooth and strong when the power curve peaks and the trailer weight is heavy.\u003c\/p\u003e\n\u003ch4\u003eEngineered for High Horsepower and Daily Reliability\u003c\/h4\u003e\n\u003cp\u003eBuilt to handle up to 900 horsepower at the flywheel, this long block isn’t just about brute force—it’s also designed to be streetable and tow-ready between 650–800 horsepower. Ceramic-coated pistons and dry film-coated skirts help fight heat and friction under boost, while ARP or OptiTorque head studs lock it all down. It comes fully machined and balanced with every component carefully spec’d to meet or exceed OEM tolerances. The complete assembly includes a remanufactured head, top-end gasket kit, pushrods, rockers set to spec, and all-new internals. While this is a serious engine for demanding setups, it’s still backed by DFC’s 5-year\/160,000 km (100,000 mi) warranty—just keep up with the more frequent service intervals required for severe duty use. If your Cummins is built to tow like a machine and hit the throttle without mercy, this is the long block that can take it—and then some.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1994, 1995, 1996, 1997 Dodge RAM 5.9L Cummins 12V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51797911437596,"sku":"DDUTH599497SOALBHD","price":19057.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH599497SOALBHD_1.jpg?v=1746471881"},{"product_id":"dfc-diesel-ss591998soalb-street-series-speed-of-air-long-block-std-auto-1998-ram-5-9l-cummins-24v-storm-block","title":"DFC Diesel SS591998SOALB Street Series Speed of Air Long Block (STD\/Auto) | 1998 Dodge RAM 5.9L Cummins (24V Storm Block)","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998 5.9L Cummins 24V Storm Block\u003c\/li\u003e\n\u003cli\u003eIncludes short block and cylinder head\u003c\/li\u003e\n\u003cli\u003ePreset rockers and pushrods to factory specs\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings included\u003c\/li\u003e\n\u003cli\u003eCometic MLS multi-layer steel head gasket\u003c\/li\u003e\n\u003cli\u003eProfessionally machined using Rottler equipment\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing in common leak areas\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eIncreased piston cooling for better reliability\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eBuilt for daily driving and work applications\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eA Smarter Way to Rebuild Your 24-Valve Cummins\u003c\/h4\u003e\n\u003cp\u003eIf your 1998 Ram 5.9L Cummins (24V Storm Block) is due for a major refresh, the DFC Diesel SS591998SOALB Street Series Long Block delivers a serious upgrade without sacrificing the drivability you rely on. This long block isn’t just a replacement—it’s a full, professionally remanufactured engine built from the block up with brand-new internals and thoughtful improvements over the factory design. Whether your truck sees daily driving, weekend hauling, or moderate performance tuning, this Street Series engine strikes the ideal balance of strength, reliability, and longevity. It includes a fully machined short block, a reman cylinder head, and a complete top-end gasket kit, with all rockers and pushrods preset to spec so you’re ready to drop it in and go.\u003c\/p\u003e\n\u003ch4\u003eBetter Than Stock, Backed with Confidence\u003c\/h4\u003e\n\u003cp\u003eWhat sets this long block apart is the attention to detail DFC brings to every build. Each engine is assembled using high-quality, name-brand parts—including new pistons, rings, bearings, valves, and seals—and features Total Seal gapless piston rings for improved compression and long-term performance. A Cometic multi-layer steel head gasket and ARP or OptiTorque head studs come standard, locking the head down tight for added peace of mind under pressure. Machining is handled using state-of-the-art Rottler equipment, ensuring perfect tolerances and surface finishes throughout the build. From improved gasket sealing in common leak points to increased piston cooling for better injector protection, every decision in this engine’s design is focused on reliability. And with a 5-year\/160,000 km (100,000 mi) warranty, you can install it knowing you're covered mile after mile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51797951349020,"sku":"DDUSS591998SOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUSS591998SOALB_1.jpg?v=1746471947"},{"product_id":"dfc-diesel-th591998soalb-tow-haul-series-speed-of-air-long-block-std-auto-1998-ram-5-9l-cummins-24v-storm-block","title":"DFC Diesel TH591998SOALB Tow\/Haul Series Speed of Air Long Block (STD\/Auto) | 1998 Dodge RAM 5.9L Cummins (24V Storm Block)","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998 5.9L Cummins 24V Storm Block\u003c\/li\u003e\n\u003cli\u003eRated for towing and up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes stage 3 camshaft upgrade\u003c\/li\u003e\n\u003cli\u003e60lb heavy-duty valve springs (94–98)\u003c\/li\u003e\n\u003cli\u003eManton HD pushrods for added strength\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings standard\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat resistance\u003c\/li\u003e\n\u003cli\u003eDry film coated piston skirts reduce friction\u003c\/li\u003e\n\u003cli\u003eCometic MLS multi-layer steel head gasket\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and balanced assembly\u003c\/li\u003e\n\u003cli\u003e5-year \/ 160,000 km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHeavy-Duty Power for Real-World Hauling\u003c\/h4\u003e\n\u003cp\u003eIf your 1998 5.9L Cummins-powered Ram is built to tow hard, run strong, and take abuse without flinching, the DFC Diesel TH591998SOALB Tow\/Haul Series Long Block is the foundation you want under the hood. Designed specifically for the 24-valve Storm Block, this engine doesn’t just replace your worn-out setup—it upgrades it with proven performance features made for high-load use. Whether you’re pulling trailers day in and day out or want a bulletproof long block for your next build, this package is built to handle up to 700 horsepower while keeping things reliable enough for daily duty. And unlike a basic reman, everything inside has been carefully selected, machined, and assembled to tighter tolerances using name-brand components you can trust.\u003c\/p\u003e\n\u003ch4\u003eUpgrades Where They Matter Most\u003c\/h4\u003e\n\u003cp\u003eThis build includes everything from the Street Series—like Total Seal gapless rings, Cometic MLS head gaskets, and either ARP or OptiTorque head studs—but adds a host of enhancements built specifically for towing and high-performance applications. A stage 3 camshaft improves airflow and midrange torque, while 60lb heavy-duty valve springs and Manton HD pushrods keep the top end in check under boost. The pistons are treated with ceramic-coated crowns and dry film coated skirts to manage heat and reduce wear—two must-haves in high-output, high-stress builds. From the rear aluminum freeze plug to the resurfaced and magnafluxed cylinder head, every inch of this long block is engineered with purpose. And with a 5-year\/160,000 km (100,000 mi) warranty, you’ve got long-term peace of mind to match the engine’s capability. This is the long block that lets your Cummins work as hard as you do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51797991588124,"sku":"DDUTH591998SOALB","price":13894.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH591998SOALB_1.jpg?v=1746472579"},{"product_id":"dfc-diesel-th591998soalbhd-tow-haul-hd-series-speed-of-air-long-block-std-auto-1998-ram-5-9l-cummins-24v-storm-block","title":"DFC Diesel TH591998SOALBHD Tow\/Haul HD Series Speed of Air Long Block (STD\/Auto) | 1998 Ram 5.9L Cummins (24V Storm Block)","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998 5.9L Cummins 24V Storm Block\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods for extreme durability\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly ensures smooth operation\u003c\/li\u003e\n\u003cli\u003eFluidamper reduces engine vibration\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate included for added strength\u003c\/li\u003e\n\u003cli\u003eStage 3 camshaft for improved performance\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns resist heat damage\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket for superior sealing\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and street use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt for the Grind, Tuned for Serious Power\u003c\/h4\u003e\n\u003cp\u003eIf you’re pushing your 1998 5.9L Cummins 24V to its limits with heavy towing or high-performance tuning, the DFC Diesel Tow\/Haul HD Series Speed of Air Long Block gives you a foundation that’s not just durable—it’s downright overbuilt. This isn’t your average reman. It’s a purpose-driven long block designed for truck owners who live in the 650–800 horsepower range, but still want the ability to stretch up to 900 HP at the flywheel. Whether you’re pulling a loaded trailer over the pass or dialing in your tune for weekend performance, this long block is built to handle it all without flinching.\u003c\/p\u003e\n\u003ch4\u003eSerious Hardware Where It Counts\u003c\/h4\u003e\n\u003cp\u003eAt the heart of the Tow\/Haul HD build are Wagler connecting rods, a balanced rotating assembly, and a Fluidamper harmonic balancer—all premium upgrades over even the Tow\/Haul standard. DFC didn’t stop there; a heavy-duty flexplate and a set of ceramic-coated pistons with dry film-coated skirts come standard to handle the heat and pressure of high-load applications. Like all DFC engines, it’s machined with industry-leading Rottler equipment and assembled using all new OEM or better components, including Total Seal gapless rings, a Cometic MLS head gasket, and either ARP or OptiTorque head studs. From street use to full-load towing, this engine is built to do it all—and do it reliably. Backed by DFC’s 5-year\/160,000 km warranty, it’s the peace of mind you need when your Cummins is built to perform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51798019506460,"sku":"DDUTH591998SOALBHD","price":19057.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH591998SOALBHD_1.jpg?v=1746473464"},{"product_id":"dfc-diesel-ss5998599soalb-street-series-speed-of-air-long-block-std-auto-1998-5-1999-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel SS5998599SOALB Street Series Speed of Air Long Block (STD\/Auto) | 1998.5-1999 Dodge RAM 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998.5–1999 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eEquipped with Speed of Air Hyperformance pistons\u003c\/li\u003e\n\u003cli\u003eIncreases fuel economy by up to 25%\u003c\/li\u003e\n\u003cli\u003eLowers oil change intervals by up to 50%\u003c\/li\u003e\n\u003cli\u003eReduces EGTs by 100–200 degrees\u003c\/li\u003e\n\u003cli\u003eDecreases visible soot and exhaust opacity\u003c\/li\u003e\n\u003cli\u003eImproves throttle response and low-end torque\u003c\/li\u003e\n\u003cli\u003eBuilt to handle added horsepower reliably\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler equipment for tight tolerances\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder head, gaskets, rockers, pushrods\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 100,000-mile warranty\u003c\/li\u003e\n\u003cli\u003eProudly remanufactured in North America\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt for More Than Just a Rebuild\u003c\/h4\u003e\n\u003cp\u003eIf you're chasing a reliable, high-performance replacement for your 1998.5–1999 Dodge Ram 5.9L Cummins 24V, the DFC Diesel SS5998599SOALB Street Series Long Block might just be the last engine your truck ever needs. Designed for standard or automatic transmissions, this remanufactured long block isn't just about getting you back on the road—it’s built to deliver cleaner combustion, longer life, and more efficient performance right from the first turn of the key. What sets it apart is DFC’s collaboration with Speed of Air, incorporating their patented Hyperformance pistons. These pistons feature precisely machined “turbulators” and aerospace-grade coatings that help the combustion burn cleaner, reduce friction, and retain more heat inside the chamber—translating to improved torque, quicker turbo response, and noticeably smoother drivability. For drivers who tow, daily, or just want to feel more power under their right foot, this means faster spool-up, better low-end torque, and more confidence when climbing grades or overtaking with a trailer in tow.\u003c\/p\u003e\n\u003ch4\u003eBuilt to Perform, Engineered to Last\u003c\/h4\u003e\n\u003cp\u003eDFC doesn’t just freshen up tired engines—they tear them down, throw out anything questionable, and rebuild using only the best cores and name-brand components that meet or exceed OEM specs. The result is an engine machined with tighter-than-factory tolerances thanks to advanced Rottler equipment, designed to deliver better performance and greater longevity than what rolled off the assembly line. Each long block includes a professionally assembled short block, cylinder head, complete top-end gasket kit, and factory-spec rockers and pushrods, all preset for a hassle-free install. And the real-world results don’t disappoint: drivers report 15–25% better fuel economy, reduced oil change intervals, fewer regen cycles, and exhaust temps dropping by up to 200 degrees. Backed by DFC’s 5-year, 100,000-mile warranty, this long block isn’t just a replacement—it’s a serious upgrade built for trucks that work hard and demand reliability day in and day out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998.5, 1999 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803541012764,"sku":"DDUSS5998599SOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUSS5998599SOALB_1.jpg?v=1746555944"},{"product_id":"dfc-diesel-th5998599soalb-tow-haul-series-speed-of-air-long-block-std-auto-1998-5-1999-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel TH5998599SOALB Tow\/Haul Series Speed of Air Long Block (STD\/Auto) | 1998.5-1999 Dodge RAM 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998.5–1999 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and performance\u003c\/li\u003e\n\u003cli\u003eSupports power levels up to 700 horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes DFC long block assembly\u003c\/li\u003e\n\u003cli\u003eSpeed of Air Hyperformance piston technology\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston ring set\u003c\/li\u003e\n\u003cli\u003eStage 3 performance camshaft installed\u003c\/li\u003e\n\u003cli\u003e103lb heavy-duty valve springs included\u003c\/li\u003e\n\u003cli\u003eManton HD pushrods for added strength\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eCometic MLS performance head gasket set\u003c\/li\u003e\n\u003cli\u003eThermal-coated pistons for heat resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt to Handle the Load Without Breaking a Sweat\u003c\/h4\u003e\n\u003cp\u003eIf your 1998.5–1999 Dodge Ram 5.9L Cummins is tasked with serious towing or heavy hauling, reliability isn’t a luxury—it’s the foundation. The DFC Diesel Tow\/Haul Series Speed of Air Long Block was engineered for trucks that work hard and don’t have time for downtime. Based on DFC’s proven Street Series foundation, this long block ups the ante with critical upgrades that turn your Cummins into a true workhorse. Whether you're pulling a heavy trailer through mountain passes or stacking miles with a loaded bed, this engine gives you the confidence to push through without hesitation. It includes DFC’s precision-machined long block assembly, but what really sets it apart is the inclusion of Speed of Air™ Hyperformance piston technology, which uses CNC-machined turbulators and aerospace coatings to deliver cleaner combustion, better fuel efficiency, and faster turbo spool-up. That means more usable torque down low and a smoother, more responsive throttle feel—perfect when you're towing uphill or accelerating with weight behind you.\u003c\/p\u003e\n\u003ch4\u003eTowing Muscle, Engineered for Endurance\u003c\/h4\u003e\n\u003cp\u003eDFC didn’t stop at smoother operation—they built this engine for true high-load durability. Inside, you’ll find a Stage 3 camshaft, 103lb heavy-duty valve springs, and Manton HD pushrods, all working together to handle higher RPMs and the increased stress that comes with demanding applications. A Cometic MLS head gasket set is paired with ARP Series 2000 or OptiTorque head studs, depending on availability, to keep everything locked down under boost. Ceramic-coated piston crowns help manage heat, while dry-film coated skirts reduce friction, extending lifespan under heavy use. Even the little things, like a bolt-in aluminum rear freeze plug, are included to eliminate common failure points. This engine isn’t just rebuilt—it’s reinforced in all the right places to give you more pulling power, more dependability, and less maintenance. So whether you’re stacking miles on the highway or crawling through job sites, this long block is built to show up, haul hard, and last longer than the truck it’s in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998.5, 1999 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803577024796,"sku":"DDUTH5998599SOALB","price":13894.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH5998599SOALB_1.jpg?v=1746556488"},{"product_id":"dfc-diesel-th5998599soalbhd-tow-haul-hd-series-speed-of-air-long-block-std-auto-1998-5-1999-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel TH5998599SOALBHD Tow\/Haul HD Series Speed of Air Long Block (STD\/Auto) | 1998.5-1999 Dodge Ram 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1998.5–1999 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eRated for up to 850 horsepower output\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow\/Haul upgrades\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods for extreme durability\u003c\/li\u003e\n\u003cli\u003eFluidamper included for improved harmonic control\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate supports high torque loads\u003c\/li\u003e\n\u003cli\u003eFully balanced rotating assembly for smooth power\u003c\/li\u003e\n\u003cli\u003eBuilt for street use and heavy towing\u003c\/li\u003e\n\u003cli\u003eSpeed of Air Hyperformance piston technology\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 100,000-mile warranty\u003c\/li\u003e\n\u003cli\u003eDesigned for severe-duty performance applications\u003c\/li\u003e\n\u003cli\u003ePerfect for high-load, high-power Cummins builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt for Heavy Towing, Daily Driving, and Big Power\u003c\/h4\u003e\n\u003cp\u003eWhen your truck pulls double duty—towing heavy trailers during the week and laying down serious horsepower on the weekends—you need an engine that can handle both without compromise. The DFC Diesel Tow\/Haul HD Series Long Block is built exactly for that balance. Designed for the 1998.5–1999 Dodge Ram 5.9L Cummins 24V with standard or automatic transmissions, this engine is the most capable version of DFC’s lineup. It takes everything from the Street and standard Tow\/Haul Series and builds on it with serious internal upgrades. That means you still get Speed of Air™ Hyperformance pistons for cleaner combustion, faster turbo spool, and noticeable gains in drivability, throttle response, and fuel efficiency. But the HD Series raises the bar even higher—engineered to comfortably support street-driven builds pushing 650 to 800 HP, with the structural integrity to handle up to 850 HP at the flywheel.\u003c\/p\u003e\n\u003ch4\u003eStrength Where It Matters, Backed by Proven Engineering\u003c\/h4\u003e\n\u003cp\u003eInside the Tow\/Haul HD, you’ll find Wagler connecting rods, a Fluidamper for improved harmonic balance, and a heavy-duty flexplate, all connected to a fully balanced rotating assembly that ensures the entire bottom end can handle high stress without flinching. These aren’t flashy bolt-ons—they’re critical reinforcements that keep the engine alive under big boost and brutal towing conditions. Whether you’re pulling heavy up mountain grades or chasing big numbers with aftermarket tuning, this engine holds its ground. It’s not just about brute strength either—precision machining ensures every component fits tighter than factory tolerances for longer life and better oil control. Backed by a 5-year, 100,000-mile warranty and built to meet the demands of severe-duty applications, this long block is ideal for Cummins owners who want maximum performance without sacrificing reliability. If you’re serious about your truck’s capability and want peace of mind behind the wheel, the HD Series delivers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1998.5, 1999 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803681784092,"sku":"DDUTH5998599SOALBHD","price":19057.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH5998599SOALBHD_1.jpg?v=1746557638"},{"product_id":"dfc-diesel-ss590002soalb-street-series-speed-of-air-long-block-std-auto-2000-2002-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel SS590002SOALB Street Series Speed of Air Long Block (STD\/Auto) | 2000-2002 Dodge RAM 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2000–2002 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eIncludes Speed of Air Hyperformance pistons\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings installed\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket included\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eMachined with precision Rottler equipment\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing for leak prevention\u003c\/li\u003e\n\u003cli\u003eLower EGTs and reduced visible exhaust\u003c\/li\u003e\n\u003cli\u003eIncreased fuel economy and smoother operation\u003c\/li\u003e\n\u003cli\u003eFactory-set rockers and pushrods included\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 100,000-mile warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSmarter Power for the 5.9L That Works as Hard as You Do\u003c\/h4\u003e\n\u003cp\u003eIf your 2000–2002 Dodge Ram 5.9L Cummins is more than just a weekend toy—if it’s your daily driver, your work rig, or the truck that never says no—then the DFC Diesel SS590002SOALB Street Series Speed of Air Long Block was built with you in mind. This isn’t just a reman engine—it’s a fully re-engineered powerplant designed to deliver more drivability, lower maintenance, and increased reliability. At its core is DFC’s precision-machined long block, assembled with all new OEM or better components, including Total Seal® gapless rings, upgraded gaskets, and a professionally remanufactured cylinder head. What makes this build really stand out is the Speed of Air™ Hyperformance pistons. Featuring aerospace-grade coatings and CNC-machined “turbulators,” these pistons boost combustion efficiency, reduce EGTs by up to 200°, and help lower fuel consumption while delivering more torque where you actually use it—down low in the RPM range.\u003c\/p\u003e\n\u003ch4\u003eBuilt for Real-World Performance and Longevity\u003c\/h4\u003e\n\u003cp\u003eThe Street Series isn’t for someone looking to gamble on budget parts or questionable cores—it’s for truck owners who want lasting value. Every detail is built around long-term durability, from the ARP Series 2000 or OptiTorque head studs (depending on availability) to the Cometic MLS head gasket and precisely honed block bored for the next oversized piston. The smoother combustion process enabled by the Speed of Air pistons means less soot, less wear, and cleaner oil between intervals, which translates into fewer service visits and better long-term performance. With reduced visible exhaust, quieter operation, and noticeable drivability improvements reported after just a few hundred miles, this engine doesn’t just replace what was lost—it enhances every part of your truck’s performance. And with a 5-year, 100,000-mile warranty, DFC backs it all with the kind of confidence only possible when every detail has been dialed in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2000, 2001, 2002 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803723202844,"sku":"DDUSS590002SOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUSS590002SOALB_1.jpg?v=1746558411"},{"product_id":"dfc-diesel-th590002soalb-tow-haul-series-speed-of-air-long-block-std-auto-2000-2002-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel TH590002SOALB Tow\/Haul Series Speed of Air Long Block (STD\/Auto) | 2000-2002 Dodge Ram 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2000–2002 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eBuilt for towing and performance up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all Street Series engine upgrades\u003c\/li\u003e\n\u003cli\u003eStage 3 camshaft for improved power delivery\u003c\/li\u003e\n\u003cli\u003e103lb heavy-duty valve springs for high RPM use\u003c\/li\u003e\n\u003cli\u003eManton HD pushrods for added strength\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket set included\u003c\/li\u003e\n\u003cli\u003eSpeed of Air Hyperformance piston technology\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings standard\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns reduce heat stress\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 100,000-mile warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt for the Weight, Tuned for the Road\u003c\/h4\u003e\n\u003cp\u003eWhen your 2000–2002 Dodge Ram 5.9L Cummins pulls heavy loads or runs with added power, you need more than a factory replacement—you need a purpose-built solution. That’s where the DFC Diesel Tow\/Haul Series Speed of Air Long Block comes in. This engine is a serious step up from stock, engineered for the kind of daily towing, hauling, and tuned performance that demands durability without sacrificing drivability. Based on the foundation of the Street Series, the Tow\/Haul version takes things further with upgrades like a Stage 3 camshaft, 103lb heavy-duty valve springs, and Manton HD pushrods—all designed to hold up under load and extend the powerband. It’s the kind of engine you can count on when pulling heavy trailers, climbing long grades, or putting extra torque to the ground with confidence.\u003c\/p\u003e\n\u003ch4\u003eSmarter Combustion, Stronger Components, Real Results\u003c\/h4\u003e\n\u003cp\u003eAt the core of this build are Speed of Air™ Hyperformance pistons, equipped with CNC-machined turbulators and aerospace-grade coatings that improve combustion efficiency, reduce EGTs, and minimize emissions. That means you get a cleaner, more responsive engine with better low-end torque and reduced stress on the turbo under load. Inside, Total Seal® gapless rings keep compression tight and oil clean, while ARP Series 2000 or OptiTorque head studs lock everything down under high boost. The Cometic MLS head gasket and bolt-in aluminum freeze plug help eliminate common failure points, especially under high stress. This long block arrives ready to install, complete with a fully assembled short block, cylinder head, top-end gasket kit, and all valvetrain components preset to spec. If you rely on your Cummins to haul with power and run reliably day in and day out, this engine was built to exceed those expectations—and then some.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2000, 2001, 2002 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803801321756,"sku":"DDUTH590002SOALB","price":13894.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH590002SOALB_1.jpg?v=1746559156"},{"product_id":"dfc-diesel-th590002soalbhd-tow-haul-hd-series-speed-of-air-long-block-std-auto-2000-2002-dodge-ram-5-9l-cummins-24v","title":"DFC Diesel TH590002SOALBHD Tow\/Haul HD Series Speed of Air Long Block (STD\/Auto) | 2000-2002 Dodge Ram 5.9L Cummins 24V","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2000–2002 Dodge Ram 5.9L 24V Cummins\u003c\/li\u003e\n\u003cli\u003eSupports power levels up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow\/Haul upgrades\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods for extreme durability\u003c\/li\u003e\n\u003cli\u003eFluidamper for improved engine balance\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate for high torque handling\u003c\/li\u003e\n\u003cli\u003eFully balanced rotating assembly included\u003c\/li\u003e\n\u003cli\u003eSpeed of Air Hyperformance piston technology\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings standard\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and tuned performance\u003c\/li\u003e\n\u003cli\u003e5-year, 100,000-mile parts and labor warranty\u003c\/li\u003e\n\u003cli\u003eDesigned for severe-duty diesel applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eReady for Big Power and Real-World Work\u003c\/h4\u003e\n\u003cp\u003eIf your 2000–2002 Dodge Ram 5.9L Cummins 24V is built for more than grocery runs—if it’s towing heavy loads, seeing long highway pulls, or putting down serious horsepower—then the DFC Diesel Tow\/Haul HD Series Long Block is the engine built to handle that lifestyle. Designed for drivers pushing up to 900 HP but still needing street manners and daily drivability, this package combines proven reliability with performance-ready components. It starts with everything in the Street and Tow\/Haul Series—like Speed of Air™ Hyperformance pistons for better combustion and lower EGTs, Total Seal gapless rings, and heavy-duty valvetrain upgrades. But this HD version steps up with serious internals, including Wagler connecting rods, a Fluidamper harmonic balancer, and a heavy-duty flexplate—all tied together with a fully balanced rotating assembly to handle torque and stress that would chew through lesser builds.\u003c\/p\u003e\n\u003ch4\u003eStrength Where It Counts, Backed with Confidence\u003c\/h4\u003e\n\u003cp\u003eEvery part of this engine is selected to deliver lasting strength under high load, high boost, and heavy work. Whether you're pulling a multi-axle trailer across mountain passes or running a high-performance tune, this long block is built to hold up and stay cool doing it. The Fluidamper reduces harmful vibrations at high RPM, the Wagler rods provide bulletproof bottom-end strength, and the HD flexplate ensures clean, reliable power delivery under strain. With aerospace coatings on the piston crowns and skirts, combustion stays efficient and controlled—meaning fewer regens, cleaner oil, and better longevity overall. The result is a smoother, more responsive engine that feels powerful without being overworked. DFC includes a 5-year, 100,000-mile warranty even on this severe-duty build—just follow the maintenance guidelines and this engine will keep pulling, climbing, and hauling long after others have given up. If you want extreme strength with daily dependability, this HD Long Block is the one to beat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2000, 2001, 2002 Dodge Ram 5.9L Cummins 24V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Image Note:\u003c\/strong\u003e Some images may be representative.\u003c\/p\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":51803947729180,"sku":"DDUTH590002SOALBHD","price":19057.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/DDUTH590002SOALBHD_1.jpg?v=1746561593"},{"product_id":"dfc-diesel-ss590304stausoalb-series-series-speed-of-air-long-block-crate-engine-std-auto-2003-2004-dodge-5-9l-cummins","title":"DFC Diesel SS590304STAUSOALB Street Series Speed of Air Long Block Crate Engine (STD\/Auto) | 2003-2004 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eComplete long block with head and gaskets\u003c\/li\u003e\n\u003cli\u003eRemanufactured with all new name-brand parts\u003c\/li\u003e\n\u003cli\u003eBuilt to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003ePreset rockers and pushrods for easy install\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket included standard\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal piston rings installed\u003c\/li\u003e\n\u003cli\u003eAdvanced CNC machining ensures precision fit\u003c\/li\u003e\n\u003cli\u003eUpgraded gasket sealing in leak-prone zones\u003c\/li\u003e\n\u003cli\u003eImproved piston cooling reduces failure risks\u003c\/li\u003e\n\u003cli\u003eFits 2003–2004 Dodge 5.9L Cummins (Auto\/Std)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUpgrade Your 5.9 Cummins With Confidence\u003c\/h4\u003e\n\u003cp\u003eIf your 2003-2004 Dodge 5.9L Cummins is showing its age, the DFC Diesel SS590304STAUSOALB Street Series Long Block Crate Engine offers the perfect path to renewed power and reliability. Designed specifically for work trucks, daily drivers, and diesel enthusiasts who demand more than just stock performance, this engine gives you confidence with every mile. It’s built with a full lineup of brand-new OEM or equivalent components, including pistons, rings, gaskets, and bearings, ensuring long-lasting durability from the inside out. Every unit is backed by one of the strongest warranties in the industry, a 5-year, 160,000 km promise that speaks volumes about DFC's build quality. Whether you tow heavy loads, haul gear, or simply need a solid daily driver, this long block delivers reliable performance without the guesswork. Rockers and pushrods come pre-set to factory specs, which means less time adjusting and more time driving. Plus, with head studs from ARP or OptiTorque already installed, this crate engine is built to handle higher cylinder pressures and aggressive driving.\u003c\/p\u003e\n\u003ch4\u003eBuilt With Precision To Outlast The Miles\u003c\/h4\u003e\n\u003cp\u003eThis Street Series long block is not just a rebuild, it’s a full remanufactured upgrade designed to outperform factory specs in all the right ways. At the core is a professionally machined block that’s bored to accept the next oversized piston, delivering better compression consistency and longer engine life. The cylinder head is fully refreshed with all-new valves, guides, hardened seats, and stem seals, plus it’s magnafluxed and resurfaced to meet exacting standards. Total Seal gapless piston rings come standard, improving combustion and reducing blow-by, while a Cometic MLS head gasket adds superior sealing under high load. CNC machining by Rottler equipment guarantees precision in every cut, helping to reduce the chances of future wear or failure. You also get improved piston cooling to guard against injector-related failures, a common issue in older 5.9L Cummins engines. It’s compatible with both standard and automatic transmissions, making it a smart drop-in solution for a wide range of builds. From the components used to the care in assembly, this engine is all about long-term performance and worry-free driving.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003, 2004 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCore return may be required by manufacturer\u003c\/li\u003e\n\u003cli\u003eEngine is designed for 2003-2004 5.9L Cummins\u003c\/li\u003e\n\u003cli\u003eCompatible with both automatic and standard transmissions\u003c\/li\u003e\n\u003cli\u003eStreet Series is intended for daily driving and towing\u003c\/li\u003e\n\u003cli\u003eIncludes upgraded head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eLong block does not include fuel system components\u003c\/li\u003e\n\u003cli\u003eInstallation should be completed by a qualified technician\u003c\/li\u003e\n\u003cli\u003eWarranty coverage is 5 years or 160,000 km\u003c\/li\u003e\n\u003cli\u003eEngine includes all new internal wear components\u003c\/li\u003e\n\u003cli\u003eBuilt using advanced Rottler CNC machining equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong data-end=\"952\" data-start=\"935\"\u003eStreet Series\u003c\/strong\u003e:\u003c\/span\u003e\u003cstrong\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52124415131932,"sku":"DDUSS590304STAUSOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/Screenshot2025-06-24093007.png?v=1750782665"},{"product_id":"dfc-diesel-th590304stausoalb-tow-haul-series-speed-of-air-long-block-crate-engine-std-auto-2003-2004-dodge-5-9l-cummins","title":"DFC Diesel TH590304STAUSOALB Tow\/Haul Series Speed of Air Long Block Crate Engine (STD\/Auto) | 2003-2004 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-year, 160,000 km warranty included\u003c\/li\u003e\n\u003cli\u003eBuilt to handle up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eStage 3 camshaft for towing performance\u003c\/li\u003e\n\u003cli\u003eCeramic-coated pistons resist heat and wear\u003c\/li\u003e\n\u003cli\u003eDry film coated skirts reduce friction\u003c\/li\u003e\n\u003cli\u003e103lb or 60lb heavy-duty valve springs\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket seals under load\u003c\/li\u003e\n\u003cli\u003eHD Manton pushrods handle high pressure\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal rings reduce blow-by\u003c\/li\u003e\n\u003cli\u003ePrecision-machined using Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eFits 2003–2004 5.9L Cummins (Auto\/Std)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTake On Bigger Loads With Peace Of Mind\u003c\/h4\u003e\n\u003cp\u003eIf your 2003-2004 Dodge 5.9L Cummins is built for serious work, the DFC Tow\/Haul Series Long Block is the engine that can keep up. Designed with heavy towing and high-demand hauling in mind, this crate engine brings the strength and reliability that diesel owners count on. It includes all the proven upgrades from DFC's Street Series, plus even more enhancements built specifically for trucks running up to 700 horsepower. With a Stage 3 camshaft, heavy-duty Manton pushrods, and ceramic-coated piston crowns, it's engineered to run cooler and stronger under stress. You also get top-tier sealing thanks to the Cometic MLS head gasket and gapless Total Seal piston rings, which means you spend more time on the road and less in the shop. Whether you're pulling equipment, a trailer, or just want the confidence of added durability, this engine delivers in all the ways that matter. It's a solid investment for anyone who works their truck hard and needs dependable power every time the key turns.\u003c\/p\u003e\n\u003ch4\u003eEngineered To Push Power Without Pushing Limits\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel TH590304STAUSOALB Tow\/Haul Series Long Block is a performance-built remanufactured engine crafted for high-stress, high-output applications. It starts with a professionally machined block and cylinder head, each serviced with Rottler CNC equipment to ensure flawless fit and function. Inside, you'll find ceramic-coated pistons with dry film coated skirts for reduced heat and wear during sustained load cycles. Valve spring upgrades depend on model year, with either 60lb or 103lb heavy-duty springs supporting the valvetrain through higher RPMs and towing loads. The Stage 3 camshaft enhances torque and drivability across the powerband, while Manton heavy-duty pushrods ensure strength in the valve system. ARP or OptiTorque head studs and a Cometic MLS gasket are included to lock in compression and eliminate sealing concerns. This engine is compatible with both standard and automatic transmissions, offering a straight-forward solution for serious builds needing long-term durability. Everything about this long block is designed to support hard use without compromising longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003, 2004 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCore return may be required for purchase\u003c\/li\u003e\n\u003cli\u003eDesigned for 2003-2004 5.9L Cummins engines\u003c\/li\u003e\n\u003cli\u003eCompatible with both automatic and manual transmissions\u003c\/li\u003e\n\u003cli\u003eBuilt to support towing and hauling up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from the Street Series engine\u003c\/li\u003e\n\u003cli\u003eValve spring spec depends on model year\u003c\/li\u003e\n\u003cli\u003eLong block does not include fuel system components\u003c\/li\u003e\n\u003cli\u003eProfessional installation is strongly recommended\u003c\/li\u003e\n\u003cli\u003e5-year, 160,000 km warranty coverage applies\u003c\/li\u003e\n\u003cli\u003eSome components may vary based on availability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52124536471836,"sku":"DDUTH590304STAUSOALB","price":15394.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034814_dfc-long-block-engine-towhaul-hd-series-dodge-59l-cummins-2003-2004_500.webp?v=1750784960"},{"product_id":"dfc-diesel-th590304stausoalbhd-tow-haul-hd-series-speed-of-air-long-block-crate-engine-std-auto-2003-2004-dodge-5-9l-cummins","title":"DFC Diesel TH590304STAUSOALBHD Tow\/Haul HD Series Speed of Air Long Block Crate Engine (STD\/Auto) | 2003-2004 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt to support up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes Fluidamper for smoother operation\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods for extreme strength\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly enhances durability\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate handles high torque loads\u003c\/li\u003e\n\u003cli\u003eIncludes all Tow\/Haul and Street upgrades\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eDesigned for street use and heavy towing\u003c\/li\u003e\n\u003cli\u003eCompatible with standard and automatic transmissions\u003c\/li\u003e\n\u003cli\u003eCeramic-coated pistons resist extreme heat\u003c\/li\u003e\n\u003cli\u003eAdvanced CNC machining ensures precise fit\u003c\/li\u003e\n\u003cli\u003eHD performance with street-drive reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGet Real Power Without Losing Street Manners\u003c\/h4\u003e\n\u003cp\u003eWhen you need serious horsepower without giving up street reliability, the DFC Tow\/Haul HD Series Long Block is built to do both. This engine is designed for 2003-2004 Dodge 5.9L Cummins owners who want to tow heavy, drive daily, and still have room to push well into high-performance territory. It’s capable of supporting up to 900 horsepower with the right setup, but more importantly, it’s been balanced for real-world use between 650 and 800 horsepower. That means it can handle weekend hauls, trailer towing, and even long road trips without skipping a beat. The HD flexplate and Fluidamper help smooth out vibrations and reinforce the rotating assembly so you get strength and comfort all in one package. Wagler connecting rods and ceramic-coated pistons add strength where it counts, giving you the confidence to turn up the power without stressing over reliability. This is the kind of long block that gives you high performance without the headaches that come with most high-strung builds.\u003c\/p\u003e\n\u003ch4\u003eReinforced From The Inside Out For Heavy Loads\u003c\/h4\u003e\n\u003cp\u003eThe TH590304STAUSOALBHD long block from DFC’s Tow\/Haul HD Series is engineered with upgraded internals for extreme duty performance and durability. It includes all the core enhancements found in the Street and Tow\/Haul series models, but adds heavy-duty components like Wagler connecting rods and a fully balanced rotating assembly. A Fluidamper comes standard to reduce torsional vibrations, working alongside the upgraded HD flexplate to better handle high torque output under load. The pistons feature ceramic-coated crowns and dry film skirts for better heat resistance and reduced friction, especially during prolonged towing or hauling. This engine also comes with preset valvetrain geometry, a CNC-machined block, and a fully remanufactured head complete with all new valves, guides, and seals. While it's designed to support up to 900 horsepower at the flywheel, its real-world sweet spot is for trucks operating between 650 and 800 horsepower. It’s a serious build for owners who demand more power and endurance than a stock setup can offer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003, 2004 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCore return is likely required after purchase\u003c\/li\u003e\n\u003cli\u003eBuilt for 2003-2004 5.9L Cummins applications\u003c\/li\u003e\n\u003cli\u003eSupports up to 900 HP with correct setup\u003c\/li\u003e\n\u003cli\u003eIdeal power range is between 650 and 800 HP\u003c\/li\u003e\n\u003cli\u003eRated HP is measured at the engine flywheel\u003c\/li\u003e\n\u003cli\u003eCompatible with automatic and standard transmissions\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow\/Haul Series upgrades\u003c\/li\u003e\n\u003cli\u003eConsidered a severe duty engine application\u003c\/li\u003e\n\u003cli\u003eRequires more frequent service intervals per warranty\u003c\/li\u003e\n\u003cli\u003e5-year, 160,000 km warranty still applies\u003c\/li\u003e\n\u003cli\u003eProfessional installation is strongly recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations\u003cstrong\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52124603580700,"sku":"DDUTH590304STAUSOALBHD","price":20702.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034814_dfc-long-block-engine-towhaul-hd-series-dodge-59l-cummins-2003-2004_500.webp?v=1750784960"},{"product_id":"dfc-diesel-ss5904507stausoalb-street-series-standard-auto-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel SS5904507STAUSOALB Street Series Standard\/Auto Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-Year \/ 100,000 Mile Warranty\u003c\/li\u003e\n\u003cli\u003eBuilt for Work Trucks \u0026amp; Daily Drivers\u003c\/li\u003e\n\u003cli\u003eIncludes Cylinder Head \u0026amp; Gasket Kit\u003c\/li\u003e\n\u003cli\u003eNew Pistons, Rings, Valves, and Guides\u003c\/li\u003e\n\u003cli\u003eCNC Machined to OEM+ Specifications\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal Piston Rings Included\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque Head Studs Standard\u003c\/li\u003e\n\u003cli\u003eMLS Multi-Layer Steel Head Gasket\u003c\/li\u003e\n\u003cli\u003eEnhanced Gasket Sealing for Reliability\u003c\/li\u003e\n\u003cli\u003eFactory-Spec Rockers and Pushrods Set\u003c\/li\u003e\n\u003cli\u003eImproved Piston Cooling for Longevity\u003c\/li\u003e\n\u003cli\u003eUses All Name-Brand OEM-Quality Parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePower You Can Rely On Every Time You Turn The Key\u003c\/h4\u003e\n\u003cp\u003eIf you’re ready to bring new life into your 2004.5-2007 Dodge Cummins, the DFC Diesel SS5904507STAUSOALB Street Series Long Block delivers the performance and dependability your truck deserves. Built with the everyday diesel enthusiast in mind, this engine is ideal for work trucks, daily drivers, and anyone who needs something tougher than stock. It comes packed with upgrades to fix the common trouble spots most Cummins owners run into over time, like head gasket issues and piston failures. You get premium components like ARP or OptiTorque head studs, a high-performance Cometic MLS head gasket, and Total Seal gapless rings that give you tighter sealing and longer engine life. This long block is more than just a rebuild, it’s a real upgrade over factory specs, using only new, name-brand parts that meet or exceed OEM standards. And with a 5-year, 100,000-mile warranty, you know this thing is built to handle serious use without giving up on you. Whether you’re hauling gear to the jobsite or towing your toys out to the dunes, this engine brings the confidence you want every time you hit the key.\u003c\/p\u003e\n\u003ch4\u003eEngineered With Precision For Daily Performance And Longevity\u003c\/h4\u003e\n\u003cp\u003eUnder the hood, the Street Series Long Block is all about solid craftsmanship and high-end components that work together seamlessly. Each unit is Rottler CNC-machined for exact tolerances, bored to accept oversized pistons, and assembled with meticulous attention to detail. The block includes all-new pistons, rings, bearings, gaskets, and seals, plus a remanufactured cylinder head that’s fully rebuilt with new valves, guides, seats, and stem seals. Even the rocker arms and pushrods are pre-set to factory specs so installation is straightforward and stress-free. This long block is engineered to reduce piston cooling issues, which helps prevent the kind of failures caused by injector problems in high-mileage engines. The Total Seal gapless piston rings reduce blow-by and oil consumption while maintaining strong compression under load. From top to bottom, this Street Series model is designed to provide smooth, reliable performance for years, making it the perfect solution for those who want upgraded durability without going full race build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a remanufactured long block, not a complete engine.\u003c\/li\u003e\n\u003cli\u003eStreet Series is best suited for daily drivers and light-duty work trucks.\u003c\/li\u003e\n\u003cli\u003eBuilt to correct known failure points common in 5.9L Cummins engines.\u003c\/li\u003e\n\u003cli\u003eComes preset with rockers and pushrods to factory specs for easier installation.\u003c\/li\u003e\n\u003cli\u003eUses oversized pistons that require matching bore specifications.\u003c\/li\u003e\n\u003cli\u003eRequires transferring some components like the turbo, injection pump, and accessories from your existing engine.\u003c\/li\u003e\n\u003cli\u003eCompatible with both standard and automatic transmissions.\u003c\/li\u003e\n\u003cli\u003eMachined and assembled in North America using Rottler CNC equipment.\u003c\/li\u003e\n\u003cli\u003eAll parts are new or OEM-equivalent, no recycled internals used.\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) limited warranty.\u003c\/li\u003e\n\u003cli\u003eCore return is required and may be subject to inspection for acceptance.\u003c\/li\u003e\n\u003cli\u003eIntended for vehicles built between mid-2004 and 2007 with the 5.9L Cummins platform.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong data-end=\"952\" data-start=\"935\"\u003eStreet Series\u003c\/strong\u003e:\u003c\/span\u003e\u003cstrong\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong data-end=\"1466\" data-start=\"1449\"\u003eStandard\/Auto\u003c\/strong\u003e:\u003c\/span\u003e \u003cstrong\u003eCompatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52131343008028,"sku":"DDUSS5904507STAUSOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_0efcbeb5-b19a-4a3a-b08a-66195733c449.webp?v=1750870168"},{"product_id":"dfc-diesel-ss5904507ausoalb-street-series-auto-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel SS5904507AUSOALB Street Series Auto Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-Year \/ 100,000 Mile Warranty\u003c\/li\u003e\n\u003cli\u003eBuilt For Daily Drivers And Work Trucks\u003c\/li\u003e\n\u003cli\u003eIncludes Cylinder Head And Gasket Kit\u003c\/li\u003e\n\u003cli\u003eAll New Pistons, Rings, And Bearings\u003c\/li\u003e\n\u003cli\u003eRottler CNC Machined For Precise Fitment\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal Piston Rings Standard\u003c\/li\u003e\n\u003cli\u003eCometic MLS Head Gasket Included\u003c\/li\u003e\n\u003cli\u003eARP Or OptiTorque Head Studs Installed\u003c\/li\u003e\n\u003cli\u003ePreset Rockers And Pushrods To Spec\u003c\/li\u003e\n\u003cli\u003eImproved Gasket Sealing In Weak Areas\u003c\/li\u003e\n\u003cli\u003eDesigned For Automatic Transmission Builds\u003c\/li\u003e\n\u003cli\u003eEngineered To Reduce Piston Heat Failures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen Your Truck Deserves More Than Just A Rebuild\u003c\/h4\u003e\n\u003cp\u003eIf your 2004.5-2007 Dodge Cummins is ready for a serious upgrade, the DFC Diesel SS5904507AUSOALB Street Series Long Block is built to deliver. This engine isn’t just a fix for a tired powerplant, it’s a purpose-built solution for diesel owners who rely on their trucks day in and day out. Whether you’re hauling trailers, heading to job sites, or simply want the peace of mind that comes from a high-quality remanufactured engine, this long block checks every box. It’s built using only new or OEM-equivalent components, so you’re not getting recycled internals or patchwork repairs. DFC includes top-tier upgrades like ARP or OptiTorque head studs and Cometic MLS head gaskets to fix the common issues these engines face over time. Even better, every unit is backed by a solid 5-year, 100,000-mile warranty, real confidence you can count on. For those who want reliability and performance from a name they can trust, this long block delivers both in one package.\u003c\/p\u003e\n\u003ch4\u003eBuilt With The Right Parts In All The Right Places\u003c\/h4\u003e\n\u003cp\u003eThis Street Series Auto Long Block is engineered with a precise blend of high-quality components and advanced machining techniques to ensure long-term durability. Every block is professionally bored and machined using Rottler CNC equipment, providing exact tolerances for oversized pistons. Those pistons are matched with Total Seal gapless rings that improve compression and reduce blow-by under load. A fully remanufactured cylinder head comes standard and is built with new valves, seats, guides, and stem seals to eliminate the weak links in older engines. The rockers and pushrods are pre-set to factory specifications, which takes the guesswork out of installation and keeps the process smooth for the installer. Unlike basic rebuilds, this long block improves sealing in known problem areas, helping prevent oil leaks and head gasket failures down the road. Designed specifically for automatic transmission setups, it delivers reliable, everyday performance without sacrificing the toughness Cummins owners expect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a long block, not a complete engine.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for automatic transmission setups.\u003c\/li\u003e\n\u003cli\u003eCustomer must transfer external components like turbo and injectors.\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured using all new or OEM-equivalent parts.\u003c\/li\u003e\n\u003cli\u003eBlock is machined to accept next oversized pistons.\u003c\/li\u003e\n\u003cli\u003eCylinder head is fully remanufactured and pressure tested.\u003c\/li\u003e\n\u003cli\u003eAll machining performed using Rottler CNC equipment.\u003c\/li\u003e\n\u003cli\u003eIncludes a full top-end gasket kit for installation.\u003c\/li\u003e\n\u003cli\u003eCore return required and must meet acceptance criteria.\u003c\/li\u003e\n\u003cli\u003eStreet Series is optimized for daily driving and light-duty use.\u003c\/li\u003e\n\u003cli\u003eWarranty coverage is 5 years or 160,000 km (100,000 miles).\u003c\/li\u003e\n\u003cli\u003eInstallation by a professional technician is strongly recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong data-end=\"952\" data-start=\"935\"\u003eStreet Series\u003c\/strong\u003e:\u003c\/span\u003e\u003cstrong\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52131483189532,"sku":"DDUSS5904507AUSOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_22cf6397-f2b1-4dd8-b40a-a26200c6c06f.webp?v=1750871074"},{"product_id":"dfc-diesel-ss5904507stsoalb-street-series-standard-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel SS5904507STSOALB Street Series Standard Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-Year \/ 100,000 Mile Warranty Coverage\u003c\/li\u003e\n\u003cli\u003eBuilt For Manual Transmission Cummins Trucks\u003c\/li\u003e\n\u003cli\u003eIncludes Cylinder Head And Gasket Kit\u003c\/li\u003e\n\u003cli\u003eRemanufactured With All New Internal Components\u003c\/li\u003e\n\u003cli\u003eProfessionally Machined Using Rottler CNC Equipment\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal Rings Improve Compression\u003c\/li\u003e\n\u003cli\u003eCometic MLS Head Gasket Standard On All Builds\u003c\/li\u003e\n\u003cli\u003ePreset Rockers And Pushrods Save Install Time\u003c\/li\u003e\n\u003cli\u003eImproved Sealing In Known Leak-Prone Areas\u003c\/li\u003e\n\u003cli\u003eDesigned For Daily Drivers And Work Use\u003c\/li\u003e\n\u003cli\u003eEnhanced Piston Cooling Prevents Heat Failures\u003c\/li\u003e\n\u003cli\u003eIncludes Oversized Pistons For Stronger Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Is The Engine Your Manual Truck Deserves\u003c\/h4\u003e\n\u003cp\u003eIf your 2004.5-2007 Dodge Cummins with a manual transmission is starting to feel worn out, this Street Series Long Block is the upgrade you’ve been waiting for. Built by DFC Diesel to outperform a factory replacement, this engine is a solid choice for daily drivers, work trucks, and anyone who expects more from their build. It’s not just rebuilt, it’s reengineered using premium name-brand parts that correct the common weak points of the original 5.9L Cummins platform. You get a remanufactured long block that includes everything from a rebuilt cylinder head to a full top-end gasket kit, with rockers and pushrods pre-set to factory spec to make installation smoother. And it’s backed by a 5-year, 100,000-mile warranty, so you know you’re getting something that’s meant to last. Whether you're hauling heavy loads or just need peace of mind on the open road, this engine delivers dependable power and long-term confidence. It’s the kind of investment that pays for itself in reliability and performance.\u003c\/p\u003e\n\u003ch4\u003ePrecision Workmanship That Brings Old Power Back To Life\u003c\/h4\u003e\n\u003cp\u003eDFC’s Street Series Standard Long Block is assembled with a focus on clean tolerances, heat management, and long-term performance. Every unit starts with a professionally machined block using advanced Rottler CNC equipment, then bored to accept oversized pistons for a tighter, more efficient seal. The internals include new pistons, rings, bearings, valves, springs, and gaskets, all meeting or exceeding OEM standards. The cylinder head is completely remanufactured, magnafluxed, resurfaced, and rebuilt with new guides, seats, and stem seals to ensure consistent performance under load. Total Seal gapless piston rings improve compression and reduce blow-by, while improved piston cooling helps protect against failures caused by faulty injectors. Factory-spec pushrods and rockers come preset for easy install, saving you time and guesswork in the shop. Combined with enhanced sealing in areas known for leaks, this long block delivers a stronger, more durable foundation for any manual-transmission Cummins truck.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a long block, not a complete engine.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for manual transmission applications.\u003c\/li\u003e\n\u003cli\u003eCustomer must reuse or replace external components like turbo, injectors, and accessories.\u003c\/li\u003e\n\u003cli\u003eRemanufactured with all new or OEM-equivalent internal parts.\u003c\/li\u003e\n\u003cli\u003eBlock is bored for use with oversized pistons.\u003c\/li\u003e\n\u003cli\u003eIncludes a remanufactured, fully rebuilt cylinder head.\u003c\/li\u003e\n\u003cli\u003eTop-end gasket kit is included for installation convenience.\u003c\/li\u003e\n\u003cli\u003eAll machining performed using advanced Rottler CNC equipment.\u003c\/li\u003e\n\u003cli\u003eCore return is required and must pass inspection.\u003c\/li\u003e\n\u003cli\u003eStreet Series is ideal for daily driving and light-duty work.\u003c\/li\u003e\n\u003cli\u003eWarranty coverage is 5 years or 160,000 km (100,000 miles).\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for optimal results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong data-start=\"935\" data-end=\"952\"\u003eStreet Series\u003c\/strong\u003e:\u003c\/span\u003e\u003cstrong\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52131539976476,"sku":"DDUSS5904507STSOALB","price":11171.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_9a776766-9c09-4f70-9d49-b854249f202a.webp?v=1750871664"},{"product_id":"dfc-diesel-th5904507stausoalb-tow-haul-series-standard-auto-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel TH5904507AUSOALB Tow\/Haul Series Auto Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for towing and heavy-duty hauling\u003c\/li\u003e\n\u003cli\u003eSupports performance builds up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eCometic multi-layer steel head gasket\u003c\/li\u003e\n\u003cli\u003eStage 3 camshaft for added power\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Manton push rods included\u003c\/li\u003e\n\u003cli\u003eUpgraded 60lb or 103lb valve springs\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns\u003c\/li\u003e\n\u003cli\u003eDry film piston skirt coating\u003c\/li\u003e\n\u003cli\u003e5-year, 160,000 km limited warranty\u003c\/li\u003e\n\u003cli\u003eProfessionally machined to factory specs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTake On Heavy Loads Without Breaking A Sweat\u003c\/h4\u003e\n\u003cp\u003eWhen you’re pulling weight day in and day out, you need an engine that won’t flinch under pressure. The DFC Diesel Tow\/Haul Series Long Block for the 2004.5-2007 5.9L Dodge Cummins is purpose-built for serious towing and hauling without sacrificing durability. Designed for work trucks and performance-focused builds, this long block handles up to 700 horsepower thanks to a host of internal upgrades. It features Total Seal gapless piston rings for maximum compression and power, while ceramic-coated piston crowns help manage heat during heavy pulls. Whether you're towing a loaded trailer across the mountains or stacking miles on the job site, this engine delivers the muscle and reliability you need. With heavy-duty valve springs and a Stage 3 camshaft, throttle response stays crisp even under load. And it’s all backed by a 5-year, 160,000 km warranty that gives you real peace of mind when the work gets tough.\u003c\/p\u003e\n\u003ch4\u003eEngineered For Longevity And Built To Perform\u003c\/h4\u003e\n\u003cp\u003eThis isn’t just a rebuilt motor, it’s a precision-crafted long block designed to exceed OEM expectations. The DFC Diesel Tow\/Haul Series is CNC-machined using Rottler equipment to ensure factory-spec tolerances from top to bottom. The assembly includes a fully machined block with over-sized pistons, new OEM or equivalent gaskets, and a reconditioned cylinder head featuring all-new valves, guides, and seats. ARP Series 2000 or OptiTorque head studs secure the top end, paired with a Cometic MLS gasket set to prevent head lift under boost. The Stage 3 camshaft and Manton HD push rods ensure valvetrain stability across the rev range, especially when running heavy or under increased cylinder pressure. Ceramic coatings on the pistons and dry film lubrication on the skirts reduce friction and extend lifespan under high-stress conditions. With components that balance strength and performance, this long block is built to run hard and run long.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt specifically for 2004.5-2007 5.9L Dodge Cummins engines\u003c\/li\u003e\n\u003cli\u003eDesigned for trucks requiring up to 700 HP output\u003c\/li\u003e\n\u003cli\u003eIntended for heavy towing and performance applications\u003c\/li\u003e\n\u003cli\u003eIncludes both short block and reconditioned cylinder head\u003c\/li\u003e\n\u003cli\u003eAll components are remanufactured to exceed OEM specs\u003c\/li\u003e\n\u003cli\u003eUses all new name-brand internal parts, not refurbished\u003c\/li\u003e\n\u003cli\u003eComes with a 5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003cli\u003eHead studs brand (ARP or OptiTorque) depends on availability\u003c\/li\u003e\n\u003cli\u003eValve spring weight varies by engine model year\u003c\/li\u003e\n\u003cli\u003eRequires proper break-in and installation procedures\u003c\/li\u003e\n\u003cli\u003eBuilt with gapless piston rings for better compression\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC for maximum precision\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52137590685980,"sku":"DDUTH5904507AUSOALB","price":15394.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_fbd85005-6888-4d53-b915-9d0216bc25f3.webp?v=1750953211"},{"product_id":"dfc-diesel-th5904507stsoalb-tow-haul-series-standard-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel TH5904507STSOALB Tow\/Haul Series Standard Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for 2004.5-2007 5.9L Cummins engines\u003c\/li\u003e\n\u003cli\u003eRated for up to 700 horsepower builds\u003c\/li\u003e\n\u003cli\u003eIncludes Stage 3 performance camshaft\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Manton push rods installed\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings included\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket for better sealing\u003c\/li\u003e\n\u003cli\u003eMachined using precision Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eAll-new name-brand internals used throughout\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat control\u003c\/li\u003e\n\u003cli\u003eDry film coated piston skirts for longevity\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGet Your Truck Back To Work With Confidence\u003c\/h4\u003e\n\u003cp\u003eIf your 2004.5-2007 5.9L Dodge Cummins is down and out, this DFC Tow\/Haul Series Standard Long Block is your fast track to reliable power and serious pulling strength. Designed for workhorses that live on the job site or haul heavy loads on the regular, it brings all the muscle you need without cutting corners. Built for up to 700 horsepower, this long block includes internal upgrades like a Stage 3 camshaft and Total Seal gapless piston rings that help improve power delivery and reduce blow-by. Manton HD push rods and heavy-duty valve springs give the valvetrain extra stability under pressure, keeping performance smooth when it matters most. The pistons are ceramic coated to handle high temperatures, while the dry film coating on the skirts helps reduce friction and wear over time. Whether you're towing a fifth wheel or loading down a flatbed, this engine is built to stay strong under stress. And with a 5-year, 160,000 km warranty behind it, you can hit the road with peace of mind and zero hesitation.\u003c\/p\u003e\n\u003ch4\u003ePrecision Built For Long Term Durability And Power\u003c\/h4\u003e\n\u003cp\u003eEvery detail of the DFC Diesel Tow\/Haul Series Standard Long Block is engineered to meet or exceed OEM standards, ensuring a rock-solid foundation for your Cummins build. The block is bored and machined for over-sized pistons, then fitted with new OEM or equivalent internals to restore factory performance with added strength. Cylinder heads are fully remanufactured with new valves, guides, and seats, plus they’re resurfaced and magnafluxed to confirm structural integrity. Rottler CNC machining ensures tight tolerances from top to bottom, which is crucial for long-term reliability and consistent power delivery. The use of ARP Series 2000 or OptiTorque head studs provides exceptional clamping force to secure the top end under boost. A Cometic MLS head gasket adds another layer of reliability by sealing in combustion pressures under heavy load. Paired with the Stage 3 camshaft and upgraded valvetrain, this long block is ready to handle high-stress applications without flinching. It's a complete, drop-in-ready package for builders who value craftsmanship and consistency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004.5-2007 5.9L Dodge Cummins applications\u003c\/li\u003e\n\u003cli\u003eStandard transmission compatibility only, not for automatic\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and performance up to 700 HP\u003c\/li\u003e\n\u003cli\u003eIncludes both short block and remanufactured cylinder head\u003c\/li\u003e\n\u003cli\u003eAll components meet or exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eHead studs brand may vary based on availability\u003c\/li\u003e\n\u003cli\u003eValve spring rating varies by model year range\u003c\/li\u003e\n\u003cli\u003eRequires professional installation and proper break-in\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC for precision and reliability\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year or 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eEngine build includes upgraded internals for longevity\u003c\/li\u003e\n\u003cli\u003eDesigned to be a direct-fit long block replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52137632497948,"sku":"DDUTH5904507STSOALB","price":15394.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_c23d9ca4-ac50-4f5e-ab56-79cfa7f1eb4e.webp?v=1750953850"},{"product_id":"dfc-diesel-th5904507ausoalbhd-tow-haul-hd-series-auto-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel TH5904507AUSOALBHD Tow\/Haul HD Series Auto Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 900 horsepower output\u003c\/li\u003e\n\u003cli\u003eIncludes heavy-duty Wagler connecting rods\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smoother operation\u003c\/li\u003e\n\u003cli\u003eComes with Fluidamper for engine harmonics\u003c\/li\u003e\n\u003cli\u003eIncludes HD flexplate for transmission durability\u003c\/li\u003e\n\u003cli\u003eBuilt for high-power towing and daily driving\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eFully remanufactured with all new internals\u003c\/li\u003e\n\u003cli\u003eComplete long block including cylinder head\u003c\/li\u003e\n\u003cli\u003ePreset rockers and pushrods for easy install\u003c\/li\u003e\n\u003cli\u003e5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003cli\u003eBuilt to exceed OEM performance specs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen You Want Big Power And Street Reliability\u003c\/h4\u003e\n\u003cp\u003eIf you’re chasing big numbers without giving up daily drivability, the DFC Tow\/Haul HD Series Long Block for the 2004.5-2007 5.9L Dodge Cummins is the serious upgrade your truck needs. Designed to handle up to 900 horsepower, this engine delivers raw strength while still being reliable enough for regular towing and street use. Whether you’re hauling a toy hauler across states or stacking work miles every week, it’s built to run hard without falling apart. The balanced rotating assembly keeps things smooth under power, while the Wagler connecting rods give you the confidence to turn up the boost. Add in the Fluidamper and HD flexplate, and you’ve got a long block that stays composed under pressure. It’s not just about brute force, either. This build is engineered to be dependable for the long haul, backed by DFC’s trusted 5-year, 160,000 km warranty.\u003c\/p\u003e\n\u003ch4\u003eStrengthened Internals Built To Handle Serious Horsepower\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Tow\/Haul HD Series is built from the ground up to withstand the demands of high horsepower Cummins applications. Every engine begins with a precision-machined block using Rottler CNC equipment to guarantee factory-spec tolerances. It includes a fully remanufactured cylinder head with new valves, guides, and seats, all magnafluxed and resurfaced for lasting reliability. What sets this HD version apart is its heavy-duty internals—Wagler connecting rods, a Fluidamper, an HD flexplate, and a balanced rotating assembly all come standard. These upgrades are key to managing increased power, torque, and engine harmonics when pushing beyond 800 horsepower. This long block retains all the features found in the Street and Tow\/Haul Series, making it a well-rounded solution for both work and performance. Ideal for trucks pulling heavy loads at high horsepower, it offers the balance of race-ready parts and real-world dependability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004.5-2007 5.9L Dodge Cummins engines\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 HP (94-98) and 850 HP (98.5-02)\u003c\/li\u003e\n\u003cli\u003eIdeal for trucks towing or driving between 650-800 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all features of the Street and Tow\/Haul Series\u003c\/li\u003e\n\u003cli\u003eWagler connecting rods included for extreme durability\u003c\/li\u003e\n\u003cli\u003eFluidamper and HD flexplate help control engine harmonics\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly included for smoother performance\u003c\/li\u003e\n\u003cli\u003eBuilt to handle high power while remaining streetable\u003c\/li\u003e\n\u003cli\u003eRated horsepower measured at the flywheel\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC for precision tolerances\u003c\/li\u003e\n\u003cli\u003eComes with DFC's 5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003cli\u003eRequires proper tuning and setup for peak performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52137671459100,"sku":"DDUTH5904507AUSOALBHD","price":20702.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_b7c32ca4-5ac1-42b6-9b8d-08ce99a67795.webp?v=1750954600"},{"product_id":"dfc-diesel-th5904507stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel TH5904507STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 900 horsepower output\u003c\/li\u003e\n\u003cli\u003eIncludes heavy-duty Wagler connecting rods\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth operation\u003c\/li\u003e\n\u003cli\u003eFluidamper helps control engine vibration\u003c\/li\u003e\n\u003cli\u003eComes with HD flexplate for drivetrain strength\u003c\/li\u003e\n\u003cli\u003eDesigned for standard transmission setups\u003c\/li\u003e\n\u003cli\u003eBuilt for high-power street and towing use\u003c\/li\u003e\n\u003cli\u003eMachined with Rottler CNC for precision\u003c\/li\u003e\n\u003cli\u003eAll internals are new OEM or better\u003c\/li\u003e\n\u003cli\u003eCylinder heads resurfaced and magnafluxed\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year or 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt For The Daily Grind And Weekend Thrills\u003c\/h4\u003e\n\u003cp\u003eWhen your truck does double duty as a workhorse and a powerhouse, the DFC Tow\/Haul HD Series Standard Long Block is built to keep up. Designed for 2004.5-2007 5.9L Dodge Cummins trucks, this long block delivers serious strength for street-driven builds that tow heavy and demand performance. Whether you're hauling equipment during the week or pushing big power at the track, this engine handles it all without breaking a sweat. It comes packed with heavy-duty upgrades like Wagler connecting rods, a balanced rotating assembly, and a Fluidamper that all work together to keep things running smooth at high horsepower levels. This build is rated for up to 900 HP, giving you the confidence to dial things up when the job or trail demands more. And since it’s the Standard version, it’s set up for manual transmissions, offering tighter control and more direct power delivery. With DFC’s 5-year, 160,000 km warranty behind it, you can push this engine hard knowing it's ready for the long haul.\u003c\/p\u003e\n\u003ch4\u003eReinforced Internals Deliver Street Ready High Horsepower\u003c\/h4\u003e\n\u003cp\u003eUnderneath the surface, the DFC Tow\/Haul HD Series Standard Long Block is precision built for high-horsepower applications that still see daily street use. Every unit begins with a professionally machined block, bored for over-sized pistons and assembled with all new name-brand internals that meet or exceed OEM standards. The cylinder head is fully remanufactured with new valves, guides, seats, and seals, then magnafluxed and resurfaced to ensure long-term durability. Unique to the HD Series, this version features Wagler connecting rods for added strength under load, a balanced rotating assembly to maintain stability at high RPMs, and a Fluidamper to help reduce harmonic vibration. An HD flexplate adds drivetrain reinforcement, especially useful for trucks that tow or operate under constant stress. It includes everything needed for a complete install, from preset valvetrain components to a full top-end gasket kit. Built for 900 HP but perfectly suited for reliable power in the 650-800 HP range, this long block is a serious foundation for your next high-performance diesel build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004.5-2007 5.9L Dodge Cummins engines\u003c\/li\u003e\n\u003cli\u003eBuilt for standard (manual) transmission setups only\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 HP (94-98) and 850 HP (98.5-02)\u003c\/li\u003e\n\u003cli\u003eBest suited for use between 650-800 HP applications\u003c\/li\u003e\n\u003cli\u003eIncludes all features of Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eEquipped with Wagler connecting rods for high strength\u003c\/li\u003e\n\u003cli\u003eIncludes Fluidamper and HD flexplate for driveline support\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly ensures smoother high-RPM operation\u003c\/li\u003e\n\u003cli\u003eAll engine internals are new and meet or exceed OEM specs\u003c\/li\u003e\n\u003cli\u003eFully remanufactured and resurfaced cylinder head included\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC for maximum precision\u003c\/li\u003e\n\u003cli\u003eCovered by a 5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52137721954588,"sku":"DDUTH5904507STSOALBHD","price":20702.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_ab6875a4-88c5-4fd5-9b9e-41e0d494d1a6.webp?v=1750955171"},{"product_id":"dfc-diesel-ss6707512soalb-street-series-standard-auto-speed-of-air-long-block-2007-5-2012-6-7-dodge-cummins","title":"DFC Diesel SS6707512SOALB Street Series Standard\/Auto Speed Of Air Long Block | 2007.5-2012 Dodge RAM 6.7L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for 2007.5-2012 6.7L Cummins engines\u003c\/li\u003e\n\u003cli\u003eCompatible with standard or automatic transmissions\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings included\u003c\/li\u003e\n\u003cli\u003eCometic MLS head gasket for better sealing\u003c\/li\u003e\n\u003cli\u003eUpgraded gasket sealing in leak-prone areas\u003c\/li\u003e\n\u003cli\u003eNew OEM or better internal components\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eImproved piston cooling to prevent injector damage\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder head with all-new hardware\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003e5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKeep Your Truck Strong With Every Turn Of The Key\u003c\/h4\u003e\n\u003cp\u003eIf you're ready to replace your worn-out motor with something built to last, the DFC Street Series Long Block for 2007.5-2012 6.7L Dodge Cummins gives you the power and peace of mind to do just that. Designed for work trucks, daily drivers, and performance-minded owners, this long block is a smart upgrade over stock. It delivers factory-spec reliability with critical improvements in common failure points, so you don’t just get a rebuilt engine, you get a better one. With Total Seal gapless piston rings, improved piston cooling, and upgraded sealing around leak-prone areas, this long block is made to go the distance. Whether you're clocking hours on the highway or towing loads through tough terrain, this engine holds up under pressure. It also includes a complete top-end gasket kit for a smoother install, saving you time in the shop. Backed by a 5-year, 160,000 km warranty, it’s an investment that keeps your truck running strong for the long haul.\u003c\/p\u003e\n\u003ch4\u003eDesigned With Precision And Rebuilt To Outperform Stock\u003c\/h4\u003e\n\u003cp\u003eThe DFC Street Series Long Block is more than a remanufactured engine, it’s a comprehensive upgrade built to meet and exceed OEM standards. Each unit is carefully machined using Rottler CNC equipment to ensure accurate tolerances and clean mating surfaces throughout the assembly. The block is bored for over-sized pistons and assembled with all new internals, including pistons, rings, bearings, gaskets, and seals. ARP Series 2000 or OptiTorque head studs are used for maximum clamping force, depending on availability. A Cometic multi-layer steel head gasket comes standard, providing exceptional sealing under high load and temperature. The cylinder head is fully remanufactured with new valves, guides, springs, and seats, then resurfaced and magnafluxed to confirm structural integrity. This long block also includes enhanced piston cooling and improved sealing at factory weak points, giving it a strong edge over typical rebuilds. It's a solid, dependable solution for any Cummins owner who wants power they can count on every day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2007.5, 2008, 2009, 2010, 2011, 2012 Dodge RAM 6.7L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2007.5-2012 6.7L Dodge Cummins engines\u003c\/li\u003e\n\u003cli\u003eCompatible with both standard and automatic transmissions\u003c\/li\u003e\n\u003cli\u003eBuilt for daily drivers, work trucks, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eImproves upon common failure points found in stock engines\u003c\/li\u003e\n\u003cli\u003eUses all new name-brand internal components\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eComes standard with Cometic MLS head gasket for better sealing\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless rings included for improved compression\u003c\/li\u003e\n\u003cli\u003eEnhanced piston cooling to reduce damage from faulty injectors\u003c\/li\u003e\n\u003cli\u003eMachined using high-precision Rottler CNC equipment\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52137737781532,"sku":"DDUSS6707512SOALB","price":11445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_5872d58a-f436-4e4c-b194-e63502278151.webp?v=1750956252"},{"product_id":"dfc-diesel-ss6707518soalb-street-series-standard-auto-speed-of-air-long-block-2007-5-2018-6-7-dodge-cummins","title":"DFC Diesel SS6707518SOALB Street Series Standard\/Auto Speed Of Air Long Block | 2007.5-2018 Dodge RAM 6.7L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 Year \/ 100,000 Mile Warranty\u003c\/li\u003e\n\u003cli\u003eStreet Series Built for Daily Driving\u003c\/li\u003e\n\u003cli\u003eAll-New OEM or Equivalent Components\u003c\/li\u003e\n\u003cli\u003eCNC Machined for Precision Fit\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque Head Studs\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal Piston Rings\u003c\/li\u003e\n\u003cli\u003eUpgradable O-Ringed Cylinder Head\u003c\/li\u003e\n\u003cli\u003eImproved Gasket Sealing Technology\u003c\/li\u003e\n\u003cli\u003eIncludes Top-End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eRemanufactured to Factory Specifications\u003c\/li\u003e\n\u003cli\u003eCylinder Head Fully Refurbished\u003c\/li\u003e\n\u003cli\u003ePre-Set Rockers and Pushrods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt To Handle Your Drive Like A Pro\u003c\/h4\u003e\n\u003cp\u003eIf you're tired of the weak spots in your stock engine and want something you can truly rely on, the DFC Diesel Street Series Long Block for your 2007.5-2018 6.7L Dodge Cummins is built to impress. Whether you're hauling gear to the jobsite, towing your weekend toys, or just want a rock-solid daily driver, this engine was made with guys like you in mind. It's not just a rebuild, it's a serious upgrade using all new OEM or equivalent components that eliminate common failure points. Backed by one of the strongest warranties in the business at 5 years or 100,000 miles, this long block gives you peace of mind where it counts. The ARP 2000 or OptiTorque head studs hold tight even under high load, while the improved gasket sealing methods help prevent the kind of annoying leaks that sideline your plans. Total Seal gapless piston rings give you better performance and longer life, especially if you're working your truck hard. It's already built and ready to go, so you can spend more time behind the wheel and less time under the hood. Bottom line: this engine is designed to keep you moving with confidence.\u003c\/p\u003e\n\u003ch4\u003eEngineered With Precision That Performs Under Pressure\u003c\/h4\u003e\n\u003cp\u003eThe Street Series Long Block isn't just another reman, it's a complete re-engineered solution designed for durability and precision. Each engine is remanufactured using Rottler CNC machining equipment to meet strict factory specs and then some, ensuring an exact fit and smooth operation right out of the crate. The block is bored to accept the next over-sized pistons, all of which are brand new along with the rings, bearings, gaskets, and seals. You'll also find a fully refurbished cylinder head that includes new guides, valves, stem seals, and hardened seats, all of which are magnafluxed and resurfaced for flawless performance. The complete short block assembly comes paired with a top-end gasket kit and preset rockers and pushrods, making installation clean and straightforward. Depending on availability, it’s assembled with either ARP 2000 or OptiTorque head studs, giving the engine the clamping force needed for higher cylinder pressures. The attention to detail in machining and assembly helps reduce blow-by, improve oil control, and increase reliability even under heavy loads. This is a long block that delivers on every front, strength, balance, and the kind of quality you can feel on every start.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 6.7L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2007.5-2018 6.7L Dodge Cummins applications\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured, not brand new\u003c\/li\u003e\n\u003cli\u003eBuilt for daily driving, towing, and light performance use\u003c\/li\u003e\n\u003cli\u003eStreet Series is DFC’s base-level performance offering\u003c\/li\u003e\n\u003cli\u003eDoes not include fuel system, turbo, or electronics\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP 2000 or OptiTorque depending on stock\u003c\/li\u003e\n\u003cli\u003eBlock is machined to accept next over-sized pistons\u003c\/li\u003e\n\u003cli\u003eIncludes a remanufactured cylinder head with all new internals\u003c\/li\u003e\n\u003cli\u003eAssembly includes rockers and pushrods pre-set to factory specs\u003c\/li\u003e\n\u003cli\u003eWarranty is 5 years or 100,000 miles (160,000 km)\u003c\/li\u003e\n\u003cli\u003eIntended for use in trucks with factory-like configurations\u003c\/li\u003e\n\u003cli\u003eUpgrades from stock to improve durability in known failure areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52144257106204,"sku":"DDUSS6707518SOALB","price":12887.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_a3f65bb2-e039-4f9b-af82-180075dbaa43.webp?v=1751038949"},{"product_id":"dfc-diesel-th6707518soalb-tow-haul-series-standard-auto-speed-of-air-long-block-2007-5-2018-6-7-dodge-cummins","title":"DFC Diesel TH6707518SOALB Tow\/Haul Series Standard\/Auto Speed Of Air Long Block | 2007.5-2018 Dodge RAM 6.7L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHandles Up To 600 Horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes O-Ringed Cylinder Head\u003c\/li\u003e\n\u003cli\u003eCeramic-Coated Piston Crowns For Heat Resistance\u003c\/li\u003e\n\u003cli\u003eSkirts Coated With Dry Film For Longevity\u003c\/li\u003e\n\u003cli\u003eARP 2000 Or OptiTorque Head Studs Installed\u003c\/li\u003e\n\u003cli\u003eEquipped With Stage 4 Performance Camshaft\u003c\/li\u003e\n\u003cli\u003eManton Heavy-Duty Pushrods For Extra Strength\u003c\/li\u003e\n\u003cli\u003e103lb Heavy-Duty Valve Springs Included\u003c\/li\u003e\n\u003cli\u003eTotal Seal Gapless Rings For Maximum Compression\u003c\/li\u003e\n\u003cli\u003eBacked By 5-Year \/ 100,000-Mile Warranty\u003c\/li\u003e\n\u003cli\u003ePrecision Machined Using Rottler CNC Equipment\u003c\/li\u003e\n\u003cli\u003ePerfect For Heavy Towing And Daily Use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Engine Was Built To Handle The Heavy Stuff\u003c\/h4\u003e\n\u003cp\u003eIf you're the kind of guy who regularly hauls trailers, loads down the bed, or just demands more from your truck, the DFC Tow\/Haul Series Long Block is made with your workload in mind. This isn’t a basic reman, it’s a purpose-built upgrade for 2007.5-2018 6.7L Dodge Cummins owners who want extra pulling power without sacrificing reliability. It’s designed to support up to 600 horsepower, so whether you’re climbing steep grades with a fifth-wheel or cruising cross-country with a heavy load, this engine can handle it. With ceramic-coated pistons and dry film coated skirts, it’s built to take heat and stress in stride. You’ll also get upgraded internals like a Stage 4 camshaft and Manton heavy-duty pushrods, which are perfect for hard-working trucks that never sit still for long. Everything about this long block is engineered to extend the life of your build while giving you the confidence to push it harder. If you depend on your truck every day, this engine is built to keep up.\u003c\/p\u003e\n\u003ch4\u003eThe Right Internal Upgrades Make All The Difference\u003c\/h4\u003e\n\u003cp\u003eThe DFC Tow\/Haul Series takes everything from the Street Series and pushes it to the next level with performance-ready internals built to handle higher loads. Each engine is precision machined with Rottler CNC equipment and bored to accept the next oversized piston, ensuring proper fit and maximum reliability. It features an O-ringed cylinder head for superior sealing, along with a Cometic MLS gasket set to better hold cylinder pressure under extreme conditions. The Stage 4 camshaft enhances valve timing for increased torque, while 103lb heavy-duty valve springs and Manton pushrods help maintain proper valvetrain control under high stress. Ceramic-coated piston crowns and dry film coated skirts increase durability, especially during extended hauling or towing. The block includes ARP 2000 or OptiTorque head studs, depending on availability, to keep the head secure under boosted conditions. Whether you’re building for performance or peace of mind on the job, this long block provides a solid, ready-to-install foundation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 6.7L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2007.5-2018 6.7L Dodge Cummins trucks\u003c\/li\u003e\n\u003cli\u003eRated for up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eIdeal for towing, hauling, and performance use\u003c\/li\u003e\n\u003cli\u003eIncludes all Street Series upgrades plus additional enhancements\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured using new OEM or equivalent components\u003c\/li\u003e\n\u003cli\u003eLong block does not include fuel system, turbo, or electronics\u003c\/li\u003e\n\u003cli\u003eIncludes remanufactured cylinder head with new internals\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP 2000 or OptiTorque depending on stock\u003c\/li\u003e\n\u003cli\u003eBuilt with ceramic-coated pistons and coated skirts for durability\u003c\/li\u003e\n\u003cli\u003eIncludes heavy-duty valvetrain components for higher stress use\u003c\/li\u003e\n\u003cli\u003eComes with a 5 year \/ 100,000 mile (160,000 km) warranty\u003c\/li\u003e\n\u003cli\u003eRequires professional installation for best performance and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52144423043356,"sku":"DDUTH6707518SOALB","price":16276.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_273a8d22-0c93-4cbd-b078-a704705a32de.webp?v=1751041588"},{"product_id":"dfc-diesel-th6707518soalbhd-tow-haul-hd-series-standard-auto-speed-of-air-long-block-2007-5-2018-6-7-dodge-cummins","title":"DFC Diesel TH6707518SOALBHD Tow\/Haul HD Series Standard\/Auto Speed Of Air Long Block | 2007.5-2018 Dodge RAM 6.7L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt To Handle Up To 850 Horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler Forged Connecting Rods\u003c\/li\u003e\n\u003cli\u003eFeatures Fluidamper Harmonic Balancer\u003c\/li\u003e\n\u003cli\u003eComes With Heavy-Duty Flexplate\u003c\/li\u003e\n\u003cli\u003eBalanced Rotating Assembly Installed\u003c\/li\u003e\n\u003cli\u003eO-Ringed Cylinder Head Included\u003c\/li\u003e\n\u003cli\u003eStage 4 Camshaft For Enhanced Performance\u003c\/li\u003e\n\u003cli\u003eTotal Seal Gapless Piston Rings\u003c\/li\u003e\n\u003cli\u003eCeramic-Coated Piston Crowns For Heat Resistance\u003c\/li\u003e\n\u003cli\u003eDry Film Coated Skirts For Durability\u003c\/li\u003e\n\u003cli\u003eARP 2000 Or OptiTorque Head Studs\u003c\/li\u003e\n\u003cli\u003e5-Year \/ 100,000 Mile Warranty Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen You Need A Cummins That Can Take It All\u003c\/h4\u003e\n\u003cp\u003eIf you're pushing your truck to its limits and need an engine that doesn't flinch under pressure, the DFC Tow\/Haul HD Series Long Block is exactly what you're after. Built for the guy who's towing heavy loads all week and still wants to light it up on the weekend, this engine delivers the kind of performance and durability few others can touch. It’s designed to handle up to 850 horsepower at the flywheel, so you’ve got plenty of headroom whether you’re hauling equipment or dialing up your tune. What really sets this build apart is the internal reinforcement, it comes with premium Wagler connecting rods, a Fluidamper to control harmonics, and a heavy-duty flexplate that’s ready for serious torque. The rotating assembly is fully balanced to keep things smooth and reliable even when you're running hard for long stretches. All the proven upgrades from the Street and Tow\/Haul Series are here too, which means you're not missing anything when it comes to everyday drivability. This is a long block that doesn't compromise, it’s built to handle the heat, the stress, and the long haul.\u003c\/p\u003e\n\u003ch4\u003eEvery Component Inside This Build Has A Purpose\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series is the most robust 6.7L Cummins long block DFC offers, combining high-strength internals with exacting machine work for serious power and longevity. It starts with a professionally machined block using Rottler CNC equipment, bored to accept next-over-sized pistons that are ceramic-coated on the crowns and dry film coated on the skirts. These coatings improve heat resistance and reduce friction in demanding conditions, like extended towing or stop-and-go traffic with a full trailer. The engine includes an O-ringed cylinder head and a Cometic MLS gasket set to help seal combustion pressures, especially at higher boost levels. Inside, you’ll find a Stage 4 camshaft and Manton heavy-duty pushrods paired with 103lb valve springs, giving the valvetrain the strength it needs to maintain timing and stability under high load. The addition of Wagler connecting rods significantly increases bottom-end durability, and the Fluidamper helps minimize harmful engine vibrations over time. Every part of this build is there for a reason, to create a reliable, high-output long block that works as hard as you do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 6.7L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2007.5-2018 6.7L Dodge Cummins trucks\u003c\/li\u003e\n\u003cli\u003eRated to handle up to 850 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eBest suited for towing and hauling between 500-750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured using new OEM or equivalent components\u003c\/li\u003e\n\u003cli\u003eBuilt with Wagler forged connecting rods for added strength\u003c\/li\u003e\n\u003cli\u003eIncludes a Fluidamper to help reduce engine harmonics\u003c\/li\u003e\n\u003cli\u003eComes with a heavy-duty flexplate for high torque use\u003c\/li\u003e\n\u003cli\u003eRotating assembly is balanced for smoother performance\u003c\/li\u003e\n\u003cli\u003eLong block does not include fuel system, turbo, or electronics\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP 2000 or OptiTorque based on availability\u003c\/li\u003e\n\u003cli\u003eBacked by a 5 year \/ 100,000 mile (160,000 km) warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52144479076636,"sku":"DDUTH6707518SOALBHD","price":22579.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_273a8d22-0c93-4cbd-b078-a704705a32de.webp?v=1751041588"},{"product_id":"dfc-diesel-ss6003ausoalb-street-series-auto-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS6003AUSOALB Street Series Auto Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eManufactured with industry-recognized parts\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent pistons, rings, gaskets\u003c\/li\u003e\n\u003cli\u003eProfessional block machining for oversized pistons\u003c\/li\u003e\n\u003cli\u003eComplete top end gasket kit included\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder heads with new components\u003c\/li\u003e\n\u003cli\u003eARP series 2000 head studs or OptiTorque studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts for added strength\u003c\/li\u003e\n\u003cli\u003eAdvanced Rottler machining for precision\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing in common leak areas\u003c\/li\u003e\n\u003cli\u003eIdeal for work trucks and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eUpgraded to address common problem areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Ultimate Upgrade for Your 6.0L Powerstroke Engine\u003c\/h4\u003e\n\u003cp\u003eIf you're looking for a reliable, high-performance engine replacement for your 2003 Ford F250\/F350 6.0L Powerstroke, look no further than the DFC Diesel SS6003AUSOALB Street Series Long Block. Built with the needs of daily drivers, work trucks, and diesel enthusiasts in mind, this engine is the perfect combination of power, durability, and peace of mind. With a comprehensive 5-year\/160,000 km (100,000-mile) warranty, you can trust that DFC Diesel stands behind their product. Whether you're tackling tough towing jobs, cruising down the highway, or hitting the job site, this engine has been designed to withstand the challenges you face daily. Featuring ARP series 2000 head studs and ARP connecting rod bolts, the SS6003AUSOALB ensures maximum strength and reliability in every driving condition. Plus, with Total Seal gapless piston rings and all-new OEM-quality components, you're not just getting a rebuild; you're getting a solid, upgraded powerhouse that exceeds OEM standards. Don't settle for anything less than the best, this Street Series engine offers essential upgrades for critical areas prone to failure in stock engines. With this engine, you're getting an investment in long-lasting performance.\u003c\/p\u003e\n\u003ch4\u003ePrecision Built with the Latest in Engine Technology\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel SS6003AUSOALB Street Series Long Block is meticulously re-manufactured to factory specifications using cutting-edge Rottler machining equipment. Every block is professionally bored to accommodate oversized pistons, ensuring superior compression and performance. All components, from pistons and rings to gaskets and valves, are completely new, designed to meet and exceed OEM standards. The re-manufactured cylinder heads come with new seats, guides, valves, and stem seals, all magnafluxed for added durability and reliability. To ensure improved sealing in commonly problematic areas, advanced gasket sealing methods are used throughout. Whether you choose the Street, Tow\/Haul, or Tow\/Haul HD series, you can be confident that you're getting a product built with precision and durability at its core. With all-new, high-quality parts, including hardened seats and cast guides, this engine ensures your vehicle is equipped for maximum efficiency and performance, no matter the load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine designed for 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIdeal for daily drivers, work trucks, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eComes with a comprehensive 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eEngine upgrades address common problem areas in stock engines\u003c\/li\u003e\n\u003cli\u003eIncludes all-new pistons, rings, bearings, and gaskets\u003c\/li\u003e\n\u003cli\u003eARP head studs and connecting rod bolts for enhanced durability\u003c\/li\u003e\n\u003cli\u003eRequires professional installation for optimal performance\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple engine series (Street, Tow\/Haul, Tow\/Haul HD)\u003c\/li\u003e\n\u003cli\u003eBlock machined for oversized pistons, increasing performance\u003c\/li\u003e\n\u003cli\u003eIncludes a complete top-end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eMachining and re-manufacturing exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eAdvanced gasket sealing methods for common leakage areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52547993567516,"sku":"DDUSS6003AUSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115.jpg?v=1752513204"},{"product_id":"dfc-diesel-ss6003stsoalb-street-series-standard-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS6003STSOALB Street Series Standard Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-year \/ 160,000 km warranty for peace of mind\u003c\/li\u003e\n\u003cli\u003eDesigned for 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eIncludes ARP series 2000 head studs or OptiTorque studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts for enhanced durability\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included for easy installation\u003c\/li\u003e\n\u003cli\u003eProfessionally machined for use with oversized pistons\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing in common leakage areas\u003c\/li\u003e\n\u003cli\u003eRe-manufactured cylinder heads with new seats and valves\u003c\/li\u003e\n\u003cli\u003eBuilt for work trucks, daily drivers, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eAdvanced Rottler machining ensures precise performance\u003c\/li\u003e\n\u003cli\u003eAvailable in Street, Tow\/Haul, and Tow\/Haul HD series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eReady for Tough Jobs and Long Hauls\u003c\/h4\u003e\n\u003cp\u003eWhen it comes to upgrading your 2003 Ford F250\/F350 6.0L Powerstroke engine, the DFC Diesel SS6003STSOALB Street Series Long Block is the solution that delivers performance, durability, and reliability. If you rely on your truck for heavy lifting, whether for work or play, this engine is built to exceed the demands of daily drivers, work trucks, and diesel enthusiasts. Backed by an impressive 5-year \/ 160,000 km warranty, you can rest easy knowing your engine is protected. Featuring a robust design with ARP series 2000 head studs and ARP connecting rod bolts, this engine is strengthened for maximum durability, making it perfect for tough jobs and long hauls. With all-new OEM or equivalent pistons, rings, and gaskets, you’re getting an engine that is more than just a rebuild, it’s a serious upgrade. The Street Series engine also incorporates advanced machining techniques and improved gasket sealing methods to prevent common issues found in stock engines, helping you avoid costly repairs down the road. Whether you’re towing, hauling, or cruising, this engine will keep you going strong mile after mile.\u003c\/p\u003e\n\u003ch4\u003ePrecision Engineered for Maximum Performance\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel SS6003STSOALB Long Block is carefully re-manufactured to meet or exceed factory specifications, ensuring that every part works seamlessly together. Using advanced Rottler machining equipment, the block is professionally bored to accommodate oversized pistons, optimizing performance and efficiency. The re-manufactured cylinder heads are fully equipped with new seats, guides, valves, and stem seals, all of which are magnafluxed for added strength and reliability. To guarantee long-lasting performance, the engine is built with new, high-quality components, including hardened seats, cast guides, and a complete top-end gasket kit. This Street Series engine is designed to tackle common issues with stock 6.0L Powerstroke engines, offering improvements in critical areas that are prone to failure. Whether you’re in need of a reliable workhorse for heavy-duty towing or simply seeking a more powerful upgrade for your daily driver, this engine provides the precision and durability you need. With every detail meticulously crafted, the DFC Diesel SS6003STSOALB ensures that your 6.0L Powerstroke engine runs stronger, longer, and more efficiently than ever before.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIdeal for work trucks, daily drivers, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eComes with a comprehensive 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for optimal performance\u003c\/li\u003e\n\u003cli\u003eEngine designed to address common stock engine problem areas\u003c\/li\u003e\n\u003cli\u003eRequires proper maintenance to ensure long-term reliability\u003c\/li\u003e\n\u003cli\u003eMultiple engine series options available (Street, Tow\/Haul, Tow\/Haul HD)\u003c\/li\u003e\n\u003cli\u003eBlock machined to accommodate oversized pistons for enhanced performance\u003c\/li\u003e\n\u003cli\u003eIncludes all-new OEM-quality parts, ensuring a high standard of performance\u003c\/li\u003e\n\u003cli\u003eIncludes top-end gasket kit and complete short block assembly\u003c\/li\u003e\n\u003cli\u003eARP head studs and connecting rod bolts increase engine strength\u003c\/li\u003e\n\u003cli\u003eRe-manufactured with advanced Rottler machining for precise performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52548102127900,"sku":"DDUSS6003STSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_3151e6bc-a548-46b0-9bd7-6c5abc5e5760.jpg?v=1752514554"},{"product_id":"dfc-diesel-th6003ausoalb-tow-haul-series-auto-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6003AUSOALB Tow\/Haul Series Auto Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for towing, hauling, and performance\u003c\/li\u003e\n\u003cli\u003e5-year \/ 160,000 km warranty for peace of mind\u003c\/li\u003e\n\u003cli\u003eRated for up to 550 HP with performance upgrades\u003c\/li\u003e\n\u003cli\u003eAll new OEM or equivalent pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eUpgraded with Stage 2 billet camshaft for improved power\u003c\/li\u003e\n\u003cli\u003eChamfered piston bowls for enhanced combustion efficiency\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns for heat resistance\u003c\/li\u003e\n\u003cli\u003eDry film-coated skirts to reduce friction\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eManton HD push rods for durability\u003c\/li\u003e\n\u003cli\u003eIncludes ARP series 2000 head studs or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eComplete long block assembly for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Engine That Will Power Your Toughest Jobs\u003c\/h4\u003e\n\u003cp\u003eWhen you're looking to push your 2003 Ford F250\/F350 6.0L Powerstroke to the next level, the DFC Diesel TH6003AUSOALB Tow\/Haul Series Long Block is the engine that’s built for the job. With a 5-year \/ 160,000 km warranty backing this powerhouse, you can trust it to handle whatever you throw at it. Whether you're hauling heavy loads, towing long distances, or simply looking for a more robust engine to match your needs, this Tow\/Haul Series engine delivers. It’s designed for up to 550 horsepower, giving your truck the muscle to tackle any challenge, while the added upgrades from the Street Series ensure top-tier reliability. The DFC Diesel Tow\/Haul engine isn’t just a performance upgrade, it’s a workhorse that gives you the strength and power needed for serious towing and hauling. With ceramic-coated piston crowns, chamfered piston bowls, and Manton HD push rods, this engine is crafted for longevity and peak performance. Whether you're on the job site or the open road, the Tow\/Haul Series engine will keep you moving with confidence.\u003c\/p\u003e\n\u003ch4\u003eEngineered for Performance and Durability\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel TH6003AUSOALB Tow\/Haul Series Long Block is meticulously engineered to meet and exceed the demands of high-performance applications. Building upon the solid foundation of the Street Series, this engine includes several key enhancements, such as the Stage 2 billet camshaft, which provides a significant boost in power. The chamfered piston bowls and ceramic-coated piston crowns help optimize combustion efficiency while reducing heat buildup, ensuring the engine runs smoother for longer. Additionally, the O-ringed cylinder heads improve sealing, preventing leaks and enhancing durability. Designed to withstand the rigors of high horsepower applications, the engine is rated for up to 550 HP at the flywheel, making it perfect for towing and hauling under demanding conditions. With all-new, high-quality parts including ARP series 2000 head studs and Manton HD push rods, this engine is built to last and perform under heavy stress. Every component is carefully selected to offer maximum strength, efficiency, and reliability, ensuring you get the most out of your 6.0L Powerstroke.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and high-performance applications\u003c\/li\u003e\n\u003cli\u003eIdeal for applications requiring up to 550 HP\u003c\/li\u003e\n\u003cli\u003eRequires professional installation for optimal performance\u003c\/li\u003e\n\u003cli\u003eRated HP is measured at the flywheel (same as factory ratings)\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft provides enhanced power delivery\u003c\/li\u003e\n\u003cli\u003eIncludes ceramic-coated piston crowns for heat resistance\u003c\/li\u003e\n\u003cli\u003eEngine components are built for durability under heavy stress\u003c\/li\u003e\n\u003cli\u003eEngine designed with O-ringed cylinder heads for better sealing\u003c\/li\u003e\n\u003cli\u003eAll components are made to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eEngine comes with a comprehensive 5-year \/ 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eAvailable as part of the Tow\/Haul Series for increased towing capabilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003e\u003c\/h3\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52548213866780,"sku":"DDUTH6003AUSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_e3082e9f-249f-4128-8eba-c3e9b5777070.jpg?v=1752515926"},{"product_id":"dfc-diesel-th6003stsoalb-tow-haul-series-auto-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6003STSOALB Tow\/Haul Series Standard Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for towing, hauling, and performance applications\u003c\/li\u003e\n\u003cli\u003eRated for up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003e5-year \/ 160,000 km warranty for reliability\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft for increased power\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns for heat resistance\u003c\/li\u003e\n\u003cli\u003eDry film-coated skirts to reduce friction\u003c\/li\u003e\n\u003cli\u003eManton HD push rods for enhanced durability\u003c\/li\u003e\n\u003cli\u003eIncludes ARP series 2000 head studs or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eComplete long block assembly for easy installation\u003c\/li\u003e\n\u003cli\u003eAll-new OEM-quality pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block for oversized pistons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUnmatched Power and Durability for Your 6.0L Powerstroke\u003c\/h4\u003e\n\u003cp\u003eWhen you need an engine that’s built to tackle the toughest towing, hauling, and performance applications, the DFC Diesel TH6003STSOALB Tow\/Haul Series Long Block is exactly what you’re looking for. Rated for up to 600 horsepower, this powerhouse offers the strength and reliability your 2003 Ford F250\/F350 6.0L Powerstroke needs to handle heavy loads and demanding tasks. With a 5-year \/ 160,000 km warranty, you can feel confident that your engine is built to last. Featuring enhanced components like a Stage 2 billet camshaft, chamfered piston bowls, and ceramic-coated piston crowns, the Tow\/Haul Series Long Block delivers a smoother, more efficient performance. This engine is designed with O-ringed cylinder heads and dry film-coated piston skirts to reduce friction, increase durability, and improve overall efficiency. If you’re looking for an upgrade that’ll give you the power, performance, and longevity to take on anything, this engine has got your back. Whether you're on a worksite, towing a trailer, or navigating challenging terrain, the Tow\/Haul Series engine ensures you have the strength you need, when you need it most.\u003c\/p\u003e\n\u003ch4\u003eBuilt with Precision and Performance in Mind\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel TH6003STSOALB Tow\/Haul Series Long Block is carefully engineered to offer precision performance and unmatched durability. At the core of this engine are several key upgrades over the Street Series, including a Stage 2 billet camshaft that enhances power delivery for demanding applications. The block is professionally machined to accommodate oversized pistons, optimizing performance and efficiency for heavy-duty tasks. To ensure durability under the most extreme conditions, this engine features chamfered piston bowls and ceramic-coated piston crowns, which reduce heat buildup and improve combustion efficiency. With O-ringed cylinder heads, you get an improved seal for better pressure retention and longer-lasting reliability. The addition of Manton HD push rods further strengthens the engine, making it ready to handle 600 horsepower at the flywheel. Every part, from the ARP series 2000 head studs to the dry film-coated skirts, is selected for its ability to withstand high-performance stress while maintaining the engine’s efficiency. This engine has been built with the specific needs of towing and hauling in mind, delivering the power and performance you need for any task.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIdeal for towing, hauling, and high-performance applications\u003c\/li\u003e\n\u003cli\u003eEngine is rated for up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eRequires professional installation for optimal performance\u003c\/li\u003e\n\u003cli\u003eRated horsepower is measured at the flywheel (factory standard)\u003c\/li\u003e\n\u003cli\u003eEngine is designed with upgrades for extreme performance\u003c\/li\u003e\n\u003cli\u003e5-year \/ 160,000 km warranty ensures reliability\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft for enhanced power delivery\u003c\/li\u003e\n\u003cli\u003eChamfered piston bowls and ceramic-coated piston crowns\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads improve engine sealing\u003c\/li\u003e\n\u003cli\u003eDry film-coated skirts reduce friction for smooth operation\u003c\/li\u003e\n\u003cli\u003eAll parts are built to exceed OEM specifications for durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52548311875868,"sku":"DDUTH6003STSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_093debfe-de22-455c-900b-7ef3cd39e974.jpg?v=1752517334"},{"product_id":"dfc-diesel-th6003ausoalbhd-tow-haul-hd-series-auto-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6003AUSOALBHD Tow\/Haul HD Series Auto Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eRated for 500–750 HP towing loads\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler or Carrillo rods\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate for added strength\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly reduces vibration\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer for smooth operation\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eNew OEM or equivalent pistons and rings\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads with all-new components\u003c\/li\u003e\n\u003cli\u003eMachined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePush Your Powerstroke Past The Limit Without Breaking A Sweat\u003c\/h4\u003e\n\u003cp\u003eIf you’re ready to take your 2003 F250 or F350 6.0L Powerstroke to the next level, the DFC Tow\/Haul HD Series Long Block delivers the kind of strength and reliability that serious truck owners count on. Built for those who tow heavy loads regularly but also want room to grow into high horsepower builds, this engine is rated to handle up to 900 horsepower at the crank. Whether you’re hauling a fifth wheel, a loaded trailer, or just want peace of mind for long-distance pulls, this build is engineered to take the stress without breaking down. It’s equipped with premium internal components like Wagler or Carrillo rods and a heavy-duty flexplate, giving you confidence when you push your truck harder than stock was ever meant to handle. A new OEM balancer and a fully balanced rotating assembly help keep your ride running smooth under strain, even during extended high-load use. And with a full 5-year, 160,000 kilometer warranty, you’re not just getting a powerful setup, you’re getting support that sticks. It’s everything you need when dependability, torque, and pulling power are part of your daily routine.\u003c\/p\u003e\n\u003ch4\u003eA No Compromise Build That Knows Its Purpose\u003c\/h4\u003e\n\u003cp\u003eEvery detail of the DFC Diesel TH6003AUSOALBHD Tow\/Haul HD Long Block has been carefully spec’d for high-demand applications and long-term performance. This engine begins with a remanufactured block that’s been machined and bored to accept oversized pistons for tighter tolerances and more reliable combustion. Internally, it’s loaded with name-brand components that meet or exceed OEM standards, including all-new pistons, rings, gaskets, and cylinder heads rebuilt with new valves, guides, and seals. The build includes ARP or OptiTorque head studs for superior clamping force, along with ARP rod bolts to lock things down where it counts. A complete top-end gasket kit is included to finish the install cleanly, along with all rockers and pushrods pre-installed for convenience. Unique to the HD Series, this long block adds forged connecting rods from either Wagler or Carrillo, both trusted names in diesel performance. When combined with the HD flexplate, OEM balancer, and balanced rotating assembly, the result is an engine that’s ready for daily street use while still having the bones to support high-performance upgrades in the future.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine is built for street and heavy towing use\u003c\/li\u003e\n\u003cli\u003eSupports up to 900 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eIdeal for trucks towing between 500 and 750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes either Wagler or Carrillo rods based on availability\u003c\/li\u003e\n\u003cli\u003eComes with ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eUses all new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eEngine block is bored and machined for oversized pistons\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder heads include new valves, guides, and seals\u003c\/li\u003e\n\u003cli\u003e5-year or 160,000 kilometer manufacturer-backed warranty\u003c\/li\u003e\n\u003cli\u003eIncludes a full top-end gasket kit for final assembly\u003c\/li\u003e\n\u003cli\u003eRotating assembly is fully balanced for smoother operation\u003c\/li\u003e\n\u003cli\u003ePart compatibility specific to 2003 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52568204443932,"sku":"DDUTH6003AUSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_6755c652-432d-42a5-b474-bd8433a3d6ef.jpg?v=1752767767"},{"product_id":"dfc-diesel-th6003stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2003-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6003STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block | 2003 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 900 flywheel horsepower\u003c\/li\u003e\n\u003cli\u003eHandles 500–750 HP towing demands\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler or Carrillo connecting rods\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate for added durability\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth power\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer enhances engine stability\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored engine block\u003c\/li\u003e\n\u003cli\u003eAll new OEM or equivalent internals\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads with new components\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen Your Truck Needs Power That Lasts All Day\u003c\/h4\u003e\n\u003cp\u003eIf you’re hauling serious weight or just want a 6.0L Powerstroke that won’t fold under pressure, the DFC Tow\/Haul HD Series Standard Speed Long Block is built to take it. Designed for hard-working 2003 F250 and F350 trucks, this engine balances street reliability with the kind of towing strength that gives you confidence on steep grades or long hauls. It’s rated to handle up to 900 horsepower at the flywheel, so you’ve got plenty of room to upgrade as your build evolves. At the same time, it’s tuned to operate best in that 500 to 750 horsepower sweet spot where towing performance really shines. Whether you're pulling a fully loaded trailer or just want peace of mind every time you fire it up, this setup gives you a rock-solid foundation. With a new OEM balancer, heavy-duty flexplate, and balanced rotating assembly, it stays smooth even when the work gets rough. This engine isn't just about brute strength, it’s about delivering reliable, usable power where and when it matters most.\u003c\/p\u003e\n\u003ch4\u003eEvery Critical Component Built With Precision In Mind\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel TH6003STSOALBHD Long Block is a fully remanufactured powerplant crafted with industry-leading quality and attention to detail. Each engine block is professionally machined and bored to accept oversized pistons, improving sealing and compression for a tighter, more consistent build. Internally, the setup includes all new OEM or equivalent pistons, rings, and gaskets, along with ARP 2000 or OptiTorque head studs and ARP rod bolts to ensure dependable strength where it matters. The cylinder heads are fully remanufactured with new seats, guides, valves, and seals, and are resurfaced and magnafluxed for total reliability. This long block includes a full top-end gasket kit and comes pre-assembled with rockers and pushrods already installed, making installation cleaner and faster. Unique to the HD Series, this build adds either Wagler or Carrillo forged rods depending on availability, giving you the internal strength to support higher horsepower goals without sacrificing longevity. When paired with the HD flexplate and balanced rotating assembly, this engine delivers the durability and refinement needed for daily use, heavy towing, or performance-driven builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2003 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2003 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBest suited for towing applications between 500 and 750 HP\u003c\/li\u003e\n\u003cli\u003eCapable of supporting builds up to 900 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series\u003c\/li\u003e\n\u003cli\u003eComes with either Wagler or Carrillo rods based on availability\u003c\/li\u003e\n\u003cli\u003eEngine includes ARP or OptiTorque head studs depending on supply\u003c\/li\u003e\n\u003cli\u003eRemanufactured using all new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eBlock is bored for oversized pistons to enhance performance\u003c\/li\u003e\n\u003cli\u003eRotating assembly is professionally balanced for smooth operation\u003c\/li\u003e\n\u003cli\u003eCovered by a 5-year or 160,000 kilometer manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eLong block ships with rockers and pushrods pre-installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52568277123356,"sku":"DDUTH6003STSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_65c20b6a-cf36-4da3-9f6e-8d7fc046b50e.jpg?v=1752768239"},{"product_id":"dfc-diesel-ss6004ausoalb-street-series-auto-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS6004AUSOALB Street Series Auto Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for daily driving and work use\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings included\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler equipment\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and bearings\u003c\/li\u003e\n\u003cli\u003eImproved sealing in known leak areas\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads with new components\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eBlock bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eIdeal for 2004 Ford F250 and F350\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt To Outwork Stock And Keep You Moving\u003c\/h4\u003e\n\u003cp\u003eIf you're tired of dealing with weak spots in your stock 6.0L Powerstroke, the DFC Street Series Long Block is exactly what your 2004 F250 or F350 needs to stay on the road and out of the shop. This engine was designed with real truck owners in mind, guys who tow, commute, and depend on their rigs every single day. It's not just a replacement, it's a serious upgrade that targets known failure points in the factory engine. With improved sealing in common leak zones and heavy-duty internal components, this long block was made to handle daily driving with confidence. It comes pre-assembled with high-quality ARP or OptiTorque head studs for added durability under pressure, plus ARP rod bolts to keep everything buttoned up where it counts. Whether you’re hauling tools to the jobsite or racking up highway miles, this engine gives you the peace of mind that your truck won’t let you down. And with DFC’s unmatched 5-year, 160,000 kilometer warranty, you’re getting support that lasts as long as the engine does.\u003c\/p\u003e\n\u003ch4\u003eFactory Precision Meets Purpose Built Reliability\u003c\/h4\u003e\n\u003cp\u003eThe DFC SS6004AUSOALB Street Series Long Block is a remanufactured engine that’s been carefully rebuilt to go well beyond stock specs. Every block is professionally machined using some of the most advanced Rottler equipment in North America, then bored to fit oversized pistons for better fitment and performance. The internals are completely new, including pistons, rings, bearings, gaskets, and seals, so nothing used or reconditioned makes its way inside. DFC also includes Total Seal gapless piston rings to help improve combustion and minimize blow-by, giving you more efficient power and longer engine life. The cylinder heads are remanufactured with new valves, guides, seats, and stem seals, and each one is magnafluxed and resurfaced to meet precise tolerances. A full top-end gasket kit is included to complete your installation, and all rockers and pushrods come pre-installed to save time in the bay. With quality name-brand parts throughout and a build process that meets or exceeds OEM standards, this engine is a reliable solution for any driver looking to restore confidence in their 2004 6.0L Powerstroke.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine is designed for daily drivers and work trucks\u003c\/li\u003e\n\u003cli\u003eTargets and upgrades common 6.0L Powerstroke failure points\u003c\/li\u003e\n\u003cli\u003eBuilt using advanced Rottler machining equipment\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings for better compression\u003c\/li\u003e\n\u003cli\u003eComes with ARP 2000 or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eIncludes ARP connecting rod bolts for added bottom-end strength\u003c\/li\u003e\n\u003cli\u003eAll internal components are brand new, not reconditioned\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder heads include all new wear components\u003c\/li\u003e\n\u003cli\u003eImproved sealing methods in areas known for oil leaks\u003c\/li\u003e\n\u003cli\u003eIdeal for 2004 Ford F250 and F350 6.0L Powerstroke applications\u003c\/li\u003e\n\u003cli\u003eComes with complete top-end gasket kit for final assembly\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year or 160,000 kilometer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52568333615388,"sku":"DDUSS6004AUSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_944b6579-7784-4589-9ff5-e1c126c84bb4.jpg?v=1752768993"},{"product_id":"dfc-diesel-ss6004stsoalb-street-series-standard-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS6004STSOALB Street Series Standard Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for daily driving and work trucks\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts for added strength\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings installed\u003c\/li\u003e\n\u003cli\u003eAll new OEM or equivalent internal parts\u003c\/li\u003e\n\u003cli\u003eMachined with advanced Rottler equipment\u003c\/li\u003e\n\u003cli\u003eImproved sealing in known leak-prone areas\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads with all new components\u003c\/li\u003e\n\u003cli\u003eBlock bored for oversized piston fitment\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eIdeal for 2004 F250 and F350 6.0L trucks\u003c\/li\u003e\n\u003cli\u003eCovered by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Is The Engine That Solves The Problem\u003c\/h4\u003e\n\u003cp\u003eIf your 2004 F250 or F350 has been giving you trouble, it’s probably not your fault, it’s the factory engine design. The DFC Street Series Standard Speed Long Block is built to replace those weak points with something stronger, smoother, and made to last. Whether you’re behind the wheel of a workhorse or daily driver, this engine gives you the kind of peace of mind that stock just doesn’t offer. It’s packed with smart upgrades in all the right places, from improved gasket sealing methods to name-brand internals built to handle daily demands. DFC designed this build for real-world use, not just showroom numbers, so you can count on it whether you're hauling a load or running errands. It comes pre-assembled with ARP or OptiTorque head studs and ARP connecting rod bolts, so everything underneath is locked down tight and ready to handle pressure. The best part? You get that reliability backed by a 5-year, 160,000 kilometer warranty that’s one of the best in North America.\u003c\/p\u003e\n\u003ch4\u003eA Purpose Built Solution That Exceeds Factory Standards\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel SS6004STSOALB Street Series Long Block is a fully remanufactured drop-in replacement built for long-term reliability. Each block is carefully machined and bored to accept oversized pistons, improving sealing, efficiency, and combustion across the board. Inside, you'll find all new OEM or equivalent parts including pistons, rings, bearings, gaskets, and seals, all selected for consistency and strength. DFC also includes Total Seal gapless piston rings as a standard feature, reducing blow-by and helping the engine maintain consistent compression over time. The heads are remanufactured with new valves, springs, seats, stem seals, and guides, then magnafluxed and resurfaced to ensure structural integrity and proper fitment. Assembly includes a complete top-end gasket kit and pre-installed rockers and pushrods to simplify installation. With ARP or OptiTorque head studs and ARP rod bolts installed, this engine is ready to perform under the demands of towing, hauling, or daily driving. It’s a dependable, precision-built long block engineered specifically for the 2004 6.0L Powerstroke platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIntended for daily drivers, work trucks, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eUpgrades common failure points found in stock 6.0L engines\u003c\/li\u003e\n\u003cli\u003eIncludes either ARP 2000 or OptiTorque head studs based on availability\u003c\/li\u003e\n\u003cli\u003eComes standard with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eFeatures Total Seal gapless piston rings to reduce blow-by\u003c\/li\u003e\n\u003cli\u003eAll pistons, rings, gaskets, and bearings are brand new\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler equipment for precision\u003c\/li\u003e\n\u003cli\u003eImproved sealing methods in areas prone to leakage\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder heads include all new wear components\u003c\/li\u003e\n\u003cli\u003eRockers and pushrods come pre-installed for convenience\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year or 160,000 kilometer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52568369234204,"sku":"DDUSS6004STSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_b3da752f-c08f-40b5-a11f-0d9e90074baa.jpg?v=1752769851"},{"product_id":"th6004ausoalb","title":"DFC Diesel TH6004AUSOALB Tow\/Haul Series Auto Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt to handle up to 600 horsepower\u003c\/li\u003e\n\u003cli\u003eIdeal for towing and heavy hauling use\u003c\/li\u003e\n\u003cli\u003eIncludes Stage 2 billet camshaft\u003c\/li\u003e\n\u003cli\u003eO-ringed heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts for added strength\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings included\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat control\u003c\/li\u003e\n\u003cli\u003eDry film coated skirts for reduced friction\u003c\/li\u003e\n\u003cli\u003eManton HD pushrods pre-installed\u003c\/li\u003e\n\u003cli\u003eAll new OEM or equivalent internals\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGet The Power You Need Without Pushing Too Hard\u003c\/h4\u003e\n\u003cp\u003eIf your 2004 F250 or F350 needs a serious boost in towing confidence without stepping into race-ready territory, the DFC Tow\/Haul Series Long Block is the perfect middle ground. It’s built for truck owners who work hard, haul big, and still want reliable power every day of the week. Rated for up to 600 horsepower at the flywheel, this long block is engineered to hold its own under heavy loads while staying street-friendly. With upgrades like ceramic-coated pistons, a billet Stage 2 camshaft, and reinforced internals, you get an engine that doesn't just survive tough conditions, it thrives in them. Whether you're pulling a loaded trailer, running construction gear, or just want a dependable diesel setup with muscle behind it, this build gives you what you need. It also includes Manton HD pushrods and O-ringed heads for added durability under high combustion pressures. If you're looking for an engine that works just as hard as you do, this one checks all the right boxes.\u003c\/p\u003e\n\u003ch4\u003eBuilt For Load Carrying Durability From The Inside Out\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel TH6004AUSOALB Tow\/Haul Series Long Block is a fully remanufactured 6.0L Powerstroke built with a serious focus on towing performance and engine longevity. At the core is a professionally machined and bored engine block, ready to accept oversized pistons for better ring sealing and efficiency. Internally, the engine features all-new components including OEM or equivalent pistons, rings, bearings, and gaskets. The piston crowns are ceramic coated to manage heat more effectively, while the skirts are dry film coated to reduce friction and extend wear life. It also includes a Stage 2 billet camshaft for enhanced torque and performance, especially under heavy load. O-ringed heads improve head gasket sealing, which is critical in high-compression, high-heat diesel applications. Manton HD pushrods and ARP connecting rod bolts come pre-installed, and either ARP 2000 or OptiTorque head studs are used depending on availability. This long block is purpose-built for hard use and comes ready for final assembly with a complete top-end gasket kit included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBuilt for towing, hauling, and performance up to 600 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades found in the Street Series engine\u003c\/li\u003e\n\u003cli\u003eComes with a Stage 2 billet camshaft for added torque\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads improve gasket sealing under load\u003c\/li\u003e\n\u003cli\u003ePiston crowns are ceramic coated for better heat resistance\u003c\/li\u003e\n\u003cli\u003ePiston skirts feature dry film coating to reduce friction\u003c\/li\u003e\n\u003cli\u003eEquipped with Manton HD pushrods for durability\u003c\/li\u003e\n\u003cli\u003eComes with ARP 2000 or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed for added strength\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings as standard\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year or 160,000 kilometer manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52568411242780,"sku":"DDUTH6004AUSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_644c6d2f-25f0-45f1-9fd3-acdb0c5d13ff.jpg?v=1753202923"},{"product_id":"dfc-diesel-th6004stsoalb-tow-haul-series-standard-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6004STSOALB Tow\/Haul Series Standard Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for up to 600 horsepower\u003c\/li\u003e\n\u003cli\u003ePerfect for towing and hauling power\u003c\/li\u003e\n\u003cli\u003eIncludes O-ringed cylinder heads\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft installed\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns\u003c\/li\u003e\n\u003cli\u003eDry film-coated piston skirts\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Manton pushrods included\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eCompatible with 2004 F250\/F350 6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePower You Can Trust When The Load Gets Heavy\u003c\/h4\u003e\n\u003cp\u003eIf you rely on your truck to move serious weight, the DFC Diesel TH6004STSOALB Tow\/Haul Series Long Block is the kind of upgrade that won’t let you down. Built for drivers who demand consistent performance under pressure, this engine is rated up to 600 horsepower at the flywheel, giving you the confidence to tow, haul, or climb without second-guessing what’s under the hood. It comes equipped with critical enhancements like a Stage 2 billet camshaft and Total Seal gapless piston rings, both designed to deliver power with reliability in mind. This long block is built to handle the real-world abuse that comes with loaded trailers, steep inclines, and long miles on the highway. You’ll also get ceramic-coated piston crowns and dry film-coated skirts for added heat resistance and durability under load. DFC doesn't just assemble engines, they engineer them to handle everything from jobsite demands to weekend trailering. Whether you’re running a 2004 F250 or F350 with a 6.0L Powerstroke, this long block delivers the kind of strength that makes hard work feel a lot easier.\u003c\/p\u003e\n\u003ch4\u003eEvery Piece Designed With Serious Work In Mind\u003c\/h4\u003e\n\u003cp\u003eUnder the hood, this Tow\/Haul Series long block packs the kind of components serious builders look for. Starting with the DFC long block assembly, it’s built from the ground up with ARP connecting rod bolts and either ARP 2000 or OptiTorque head studs, depending on availability. These fasteners help maintain head and rod integrity under extreme cylinder pressure, which is essential when pushing the upper limits of power and load. The engine also features O-ringed cylinder heads to improve sealing under boost, a key feature when towing or running upgraded turbos. Internally, the pistons have chamfered bowls and are treated with ceramic coating on the crowns, along with dry film coating on the skirts to reduce friction and improve heat dissipation. Heavy-duty Manton pushrods and a Stage 2 billet camshaft round out the valvetrain, boosting reliability and top-end stability. You’ll also receive a full top-end gasket kit, rockers, and pushrods pre-installed, making the install process smoother and faster. Built for 2004 model year Ford F250 and F350 trucks with the 6.0L Powerstroke, this engine delivers the performance and toughness that heavy-duty work demands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated for up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for towing and hauling use\u003c\/li\u003e\n\u003cli\u003eIncludes all Street Series upgrades plus added enhancements\u003c\/li\u003e\n\u003cli\u003eBuilt to support performance applications up to 550 HP\u003c\/li\u003e\n\u003cli\u003eCompatible with 2004 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eLong block includes short block, cylinder heads, and gasket kit\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP 2000 or OptiTorque based on availability\u003c\/li\u003e\n\u003cli\u003eEngine includes pre-installed rockers and pushrods\u003c\/li\u003e\n\u003cli\u003eIdeal for customers upgrading from stock or replacing worn engines\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended due to complexity\u003c\/li\u003e\n\u003cli\u003eDyno tuning may be required to reach full performance potential\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52590619230492,"sku":"DDUTH6004STSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-th6004ausoalbhd-tow-haul-hd-series-auto-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6004AUSOALBHD Tow\/Haul HD Series Auto Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly included\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo rods installed\u003c\/li\u003e\n\u003cli\u003eHD flexplate for added strength\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer included\u003c\/li\u003e\n\u003cli\u003eDesigned for towing up to 750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow Series upgrades\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eComplete gasket kit included\u003c\/li\u003e\n\u003cli\u003eRemanufactured to exceed OEM standards\u003c\/li\u003e\n\u003cli\u003e5-year, 160,000km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePush The Limits Without Sacrificing Daily Dependability\u003c\/h4\u003e\n\u003cp\u003eIf you're looking for a diesel engine that can take on big horsepower without giving up street manners, the DFC Diesel TH6004AUSOALBHD Tow\/Haul HD Series Long Block is built to deliver. This heavy-duty 6.0L Powerstroke build is rated for up to 900 HP at the flywheel, yet it’s designed to run reliably between the 500 to 750 HP range during daily use. Whether you’re towing a fifth wheel, hauling heavy equipment, or just looking to unleash serious power on demand, this long block brings the muscle without compromising drivability. It’s loaded with top-tier parts like a balanced rotating assembly, a brand-new OEM balancer, and an HD flexplate that adds strength where it counts. The heavy-duty internals make it perfect for trucks that pull hard, but still hit the street every day. You’ll also have peace of mind knowing this engine comes backed by a 5-year, 160,000km warranty, proving that DFC stands behind their craftsmanship. For any 2004 F250 or F350 owner who refuses to settle for average, this engine gives you all the performance without the trade-offs.\u003c\/p\u003e\n\u003ch4\u003eReinforced From The Inside Out For Real Work\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series is DFC’s most advanced 6.0L long block, engineered for serious towing and high-output performance. Every build includes all the upgrades from both the Street and standard Tow\/Haul Series, plus a host of heavy-duty enhancements meant to handle sustained power under load. It features a fully balanced rotating assembly, ensuring smoother operation and longer life under high-stress conditions. Internally, you’ll find either Wagler or Carrillo forged connecting rods, paired with ARP rod bolts and your choice of ARP 2000 or OptiTorque head studs depending on availability. These parts are proven to hold up under the kind of pressure found in high-horsepower builds. The block itself is professionally machined, bored to match oversized pistons, and assembled using new OEM or equivalent parts that exceed factory specs. A full top-end gasket kit, pre-installed rockers, pushrods, and HD-grade components make installation straightforward for qualified shops. If your 2004 F250 or F350 needs a powerplant that’s ready for serious abuse without cutting corners, this long block brings that and more to the table.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated for up to 900 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eRecommended power range for towing is 500 to 750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo rods used depending on availability\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured using brand new OEM or equivalent parts\u003c\/li\u003e\n\u003cli\u003eBlock is machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eIncludes remanufactured cylinder heads with all new components\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly supports smoother, longer-lasting performance\u003c\/li\u003e\n\u003cli\u003eComes with a 5-year, 160,000km manufacturer-backed warranty\u003c\/li\u003e\n\u003cli\u003eProfessional installation strongly recommended for proper setup\u003c\/li\u003e\n\u003cli\u003eCompatible with 2004 Ford F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBuilt for street-driven trucks that also handle heavy-duty work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52590683423004,"sku":"DDUTH6004AUSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-th6004stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH6004STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block | 2004 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eDesigned for towing up to 750 HP\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo rods installed\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth performance\u003c\/li\u003e\n\u003cli\u003eHD flexplate for improved durability\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer included\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow Series upgrades\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eRemanufactured to meet OEM specifications\u003c\/li\u003e\n\u003cli\u003eIncludes complete gasket kit and cylinder heads\u003c\/li\u003e\n\u003cli\u003e5-year or 160,000km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen You Need Power That Works As Hard As You Do\u003c\/h4\u003e\n\u003cp\u003eIf you’re the type who tows heavy, drives hard, and expects more than stock can handle, the DFC Diesel TH6004STSOALBHD Tow\/Haul HD Series Long Block is exactly what your truck has been waiting for. Designed to support up to 900 horsepower, this engine brings serious muscle to the table without sacrificing everyday reliability. It’s built for the kind of work that punishes weak components, whether that’s hauling a trailer through the mountains or putting power down on the open highway. With upgrades like a balanced rotating assembly, HD flexplate, and a new OEM balancer, you get the confidence to push your 6.0L Powerstroke further than ever. The forged connecting rods, Wagler or Carrillo depending on availability, give the bottom end the durability needed for high-stress towing or weekend performance. DFC even backs this engine with a 5-year, 160,000km warranty, so you know it’s made to last. If you're running a 2004 F250 or F350 and want a serious upgrade without cutting corners, this long block is built for the job.\u003c\/p\u003e\n\u003ch4\u003eBuilt For High Output With Proven Internal Strength\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series is DFC Diesel’s most advanced 6.0L Powerstroke long block, engineered to handle higher power levels while retaining long-term drivability. It’s built using a professionally machined and bored block fitted with oversized pistons and remanufactured heads that are magnafluxed, resurfaced, and rebuilt with new guides, valves, seats, and stem seals. All components meet or exceed OEM specs, including the new pistons, rings, and gaskets that ensure consistent compression and durability. Internally, the rotating assembly is balanced and strengthened with forged connecting rods from either Wagler or Carrillo, depending on availability. ARP connecting rod bolts and either ARP 2000 or OptiTorque head studs further reinforce the structure to withstand serious cylinder pressures. You’ll also get a complete short block, top-end gasket kit, and pre-installed rockers and pushrods to streamline the install process. This engine is ideal for 2004 F250 and F350 owners who want a high-performance diesel platform that can keep up with demanding towing and hauling needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated for up to 900 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eOptimal towing power range is 500 to 750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series\u003c\/li\u003e\n\u003cli\u003eForged rods may be Wagler or Carrillo based on availability\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly improves performance and engine life\u003c\/li\u003e\n\u003cli\u003eComes with new OEM balancer and HD flexplate\u003c\/li\u003e\n\u003cli\u003eBuilt using new OEM or equivalent pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads are magnafluxed, resurfaced, and rebuilt\u003c\/li\u003e\n\u003cli\u003eBlock is machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eIncludes complete gasket kit, cylinder heads, and valve components\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000km manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eProfessional installation is highly recommended\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for 2004 F250 and F350 6.0L Powerstroke models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52590696988956,"sku":"DDUTH6004STSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-ss60050618ausoalb-street-series-auto-speed-of-air-long-block-2004-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS60050618AUSOALB Street Series Auto Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eBuilt for daily driving and light towing\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eFully remanufactured to exceed OEM specs\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored engine block\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eRemanufactured heads with new valve components\u003c\/li\u003e\n\u003cli\u003eImproved sealing in common leak areas\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000km warranty\u003c\/li\u003e\n\u003cli\u003eDesigned for 2005-2006 F250 and F350 6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGet Your Powerstroke Back On The Road Right\u003c\/h4\u003e\n\u003cp\u003eWhen your 6.0L Powerstroke lets go, you don’t just need a replacement, you need an upgrade that’s built to last. The DFC Diesel SS60050618AUSOALB Street Series Long Block gives your 2005-2006 F250 or F350 the strength and reliability it was missing from the factory. Designed for work trucks, daily drivers, and diesel fans who want dependable power, this engine includes critical improvements to the failure points that plague stock motors. From ARP head studs to Total Seal gapless piston rings, every piece is chosen to keep things sealed tight and running strong under pressure. It’s backed by a 5-year, 160,000km warranty, which shows you just how confident DFC is in their craftsmanship. Whether you're hauling tools, driving cross-country, or just want a smoother ride to and from the jobsite, this long block delivers performance you can count on without going overboard. It’s a solid step up for anyone who wants more peace of mind and less time under the hood.\u003c\/p\u003e\n\u003ch4\u003ePrecision Built To Outlast And Outperform Stock\u003c\/h4\u003e\n\u003cp\u003eDFC’s Street Series long block is far more than a basic reman, it’s a full performance-minded rebuild designed with the daily user in mind. Each engine starts with a professionally machined block, bored for oversized pistons, and assembled using all new OEM or equivalent components. That includes new pistons, rings, bearings, seals, and a complete top-end gasket kit to ensure consistent performance and oil-tight operation. The cylinder heads are fully remanufactured with all new seats, valves, guides, and stem seals, plus they’re magnafluxed and resurfaced to verify integrity and sealing. ARP Series 2000 or OptiTorque head studs and ARP connecting rod bolts are included standard, reinforcing the engine’s ability to withstand elevated cylinder pressures and heat cycles. Improved gasket sealing methods are used in known trouble spots to combat common 6.0L leak points. It’s built with the same advanced Rottler machining equipment found in high-end engine shops, ensuring the kind of precision that sets DFC apart from basic reman outfits. This long block is ideal for Powerstroke owners who want a fresh, dependable platform to build on without diving into heavy modifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2005-2006 F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIdeal for work trucks, daily drivers, and diesel enthusiasts\u003c\/li\u003e\n\u003cli\u003eStreet Series is DFC’s flagship engine line for 6.0L builds\u003c\/li\u003e\n\u003cli\u003eIncludes important upgrades to address known failure points\u003c\/li\u003e\n\u003cli\u003eBuilt with all new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eEngine block is machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eHeads are resurfaced, magnafluxed, and completely rebuilt\u003c\/li\u003e\n\u003cli\u003eAssembled with Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eComes with ARP connecting rod bolts installed\u003c\/li\u003e\n\u003cli\u003eImproved sealing methods used in common leak areas\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000km limited warranty\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52590767636764,"sku":"DDUSS60050618AUSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"ss60050618stsoalb","title":"DFC Diesel SS60050618STSOALB Street Series Standard Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eBuilt for work trucks and daily drivers\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs installed\u003c\/li\u003e\n\u003cli\u003eComes with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eFully remanufactured to factory specifications\u003c\/li\u003e\n\u003cli\u003eBlock bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and bearings\u003c\/li\u003e\n\u003cli\u003eProfessionally resurfaced and magnafluxed heads\u003c\/li\u003e\n\u003cli\u003eImproved sealing in high-leakage areas\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003e5-year, 160,000km limited warranty included\u003c\/li\u003e\n\u003cli\u003eFits 2005-2006 F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBring Confidence Back To Your Powerstroke Build\u003c\/h4\u003e\n\u003cp\u003eIf your 2005-2006 F250 or F350 6.0L Powerstroke is showing signs of wear, the DFC Diesel SS60050618STSOALB Street Series Long Block offers a serious solution you can count on. Built for daily drivers, work trucks, and diesel owners who want reliability without diving into race-level power, this engine packs smart upgrades that address common failure points in stock setups. DFC doesn’t just patch the problem, they rebuild from the block up with new OEM or equivalent components and precision machining to ensure your truck runs stronger than ever. With ARP head studs, Total Seal gapless piston rings, and a complete top-end gasket kit, this long block is engineered to keep your Powerstroke sealed tight and running smooth. It’s also backed by one of the most comprehensive warranties in the diesel world, 5 years or 160,000 kilometers, so you can drive it hard without second-guessing your investment. Whether you're hauling gear to a jobsite or taking the long road home, this engine is built to keep your truck moving forward with confidence. It’s a no-nonsense upgrade for Powerstroke owners who need strength, durability, and peace of mind.\u003c\/p\u003e\n\u003ch4\u003eFactory Fitment With Upgraded Internal Precision\u003c\/h4\u003e\n\u003cp\u003eThe Street Series Long Block from DFC is designed as a factory-fit solution that improves on every critical weak spot in the 6.0L Powerstroke platform. This engine starts with a remanufactured block that’s bored for oversized pistons and machined using advanced Rottler equipment for pinpoint accuracy. It’s assembled using all new internal components including pistons, rings, bearings, gaskets, and seals that meet or exceed OEM specifications. The cylinder heads are also remanufactured and upgraded with new valves, springs, hardened seats, stem seals, and cast guides, while being magnafluxed and resurfaced for optimal sealing. ARP Series 2000 or OptiTorque head studs and ARP connecting rod bolts are standard, reinforcing the engine for better durability under load. DFC also incorporates improved gasket sealing methods in areas known to leak on the original 6.0L, helping to eliminate long-term maintenance headaches. Every long block includes a full top-end gasket kit and comes pre-assembled with rockers and pushrods to simplify installation. Built with attention to detail and backed by a serious warranty, this engine delivers a reliable, high-quality replacement without the complexity of heavy performance builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2005-2006 F250 and F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eStreet Series is DFC’s flagship engine line for daily use\u003c\/li\u003e\n\u003cli\u003eBuilt for reliability in work trucks and daily drivers\u003c\/li\u003e\n\u003cli\u003eAddresses common failure points found in stock 6.0L engines\u003c\/li\u003e\n\u003cli\u003eEngine block is professionally machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eRemanufactured using all new OEM or equivalent internal components\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eComes with ARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eCylinder heads are magnafluxed, resurfaced, and fully rebuilt\u003c\/li\u003e\n\u003cli\u003eImproved sealing methods used in known leakage areas\u003c\/li\u003e\n\u003cli\u003eComes with a complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000km limited manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for best performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52590791196956,"sku":"DDUSS60050618STSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-th60050618ausoalb-tow-haul-series-auto-speed-of-air-long-block-2005-2006-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH60050618AUSOALB Tow\/Haul Series Auto Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eBuilt for up to 600 horsepower\u003c\/li\u003e\n\u003cli\u003eIdeal for towing and hauling demands\u003c\/li\u003e\n\u003cli\u003eIncludes complete long block assembly\u003c\/li\u003e\n\u003cli\u003eO-ringed heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft installed\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns for durability\u003c\/li\u003e\n\u003cli\u003eDry film-coated piston skirts reduce friction\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts included\u003c\/li\u003e\n\u003cli\u003eManton heavy-duty pushrods pre-installed\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eRebuilt with all new OEM-grade components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGet The Most Out Of Your 6.0 Powerstroke\u003c\/h4\u003e\n\u003cp\u003eIf you’re serious about towing, hauling, or putting down reliable power, the DFC Tow\/Haul Series Long Block is the upgrade your 2005-2006 Ford F-250 or F-350 6.0L Powerstroke deserves. Built to handle up to 600 horsepower at the flywheel, this engine is purpose-built for drivers who demand more out of their trucks without sacrificing durability. Whether you're pulling a loaded trailer through mountain passes or stacking miles on the job site, this engine is designed to keep your truck working harder for longer. The Tow\/Haul Series comes fully loaded with premium internal components like a stage 2 billet camshaft, ARP or OptiTorque head studs, and Manton heavy-duty pushrods, all of which work together to boost strength and reliability under heavy load. Every engine includes ceramic-coated piston crowns and dry film-coated skirts for better heat resistance and reduced friction, giving you peace of mind when the pressure’s on. What really sets this engine apart is how it blends performance and longevity, backed by a 5-year, 160,000 km warranty that speaks for itself. It's not just a replacement, it's a serious upgrade designed to meet the demands of real-world truck owners.\u003c\/p\u003e\n\u003ch4\u003eBuilt With Premium Parts And Proven Engineering\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Tow\/Haul Series Long Block is a fully remanufactured engine designed for high-load applications and long-term reliability. This build includes a professionally machined and bored block paired with new OEM-grade pistons, rings, and gaskets to meet or exceed factory specifications. The heads are resurfaced, magnafluxed, and fitted with all new valves, seats, guides, and stem seals for consistent performance and durability. Each long block comes with a full top-end gasket kit, ARP connecting rod bolts, and a complete short block assembly, making it ready for install right out of the crate. Chamfered piston bowls help optimize combustion while the O-ringed heads offer a more secure seal under high boost conditions. The use of Total Seal gapless piston rings improves compression and reduces blow-by, making the engine more efficient and powerful under strain. This configuration delivers everything included in DFC’s Street Series and adds key upgrades tailored for trucks that work hard day in and day out. It’s a thoughtfully engineered solution for owners looking to restore confidence and capability to their Powerstroke platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for 2005-2006 Ford F-250 and F-350 with 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eRated for up to 600 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for towing, hauling, and heavy-duty use\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from the DFC Street Series engine\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eLong block assembly includes cylinder heads and short block\u003c\/li\u003e\n\u003cli\u003eProfessional machining and boring for next oversized pistons\u003c\/li\u003e\n\u003cli\u003eUses only new OEM or equivalent name-brand components\u003c\/li\u003e\n\u003cli\u003eEngine is shipped with rockers and pushrods pre-installed\u003c\/li\u003e\n\u003cli\u003eIncludes ARP or OptiTorque head studs depending on availability\u003c\/li\u003e\n\u003cli\u003eBest suited for applications needing added power and durability\u003c\/li\u003e\n\u003cli\u003eNot a turn-key engine – additional components may be required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52597287026972,"sku":"DDUTH60050618AUSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"th60050618stsoalb","title":"DFC Diesel TH60050618STSOALB Tow\/Haul Series Standard Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eRated for up to 600 horsepower\u003c\/li\u003e\n\u003cli\u003eDesigned for towing and hauling power\u003c\/li\u003e\n\u003cli\u003eIncludes complete long block assembly\u003c\/li\u003e\n\u003cli\u003eO-ringed heads improve sealing under pressure\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft increases performance\u003c\/li\u003e\n\u003cli\u003eGapless Total Seal piston rings included\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston crowns resist heat\u003c\/li\u003e\n\u003cli\u003eDry film piston skirts reduce internal friction\u003c\/li\u003e\n\u003cli\u003eManton heavy-duty pushrods pre-installed\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent internal parts\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGive Your Powerstroke The Strength To Work Harder\u003c\/h4\u003e\n\u003cp\u003eIf your 2005-2006 F-250 or F-350 has lost its edge, the DFC Tow\/Haul Series Standard Speed Long Block is built to bring it back stronger than ever. Designed with hardworking trucks in mind, this engine is rated for up to 600 horsepower at the flywheel and made to take on serious towing and hauling without flinching. It's the perfect option for truck owners who rely on their rig to get the job done but don’t want to sacrifice longevity for performance. The included upgrades like a stage 2 billet camshaft, ceramic-coated piston crowns, and Manton heavy-duty pushrods aren’t just there for show, they’re there to deliver reliable power day after day. DFC builds each engine using only name-brand, OEM-quality components, so you know you’re getting something that won’t leave you stranded. Whether you’re pulling a trailer, hauling tools, or just want more confidence behind the wheel, this long block gives your Powerstroke a serious edge. Backed by a 5-year, 160,000 km warranty, this isn’t just a replacement, it’s a long-term investment in your truck’s performance.\u003c\/p\u003e\n\u003ch4\u003ePrecision Built For Demanding Towing Applications\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul Series Standard Speed Long Block from DFC Diesel is engineered for drivers who expect more from their 6.0L Powerstroke. Every engine starts with a thoroughly machined block, professionally bored to accept oversized pistons for a tighter fit and better performance. The cylinder heads are resurfaced, magnafluxed, and upgraded with all-new seats, guides, valves, and stem seals to restore factory-level sealing and airflow. This long block includes ARP series 2000 or OptiTorque head studs, ARP rod bolts, and Total Seal gapless rings for maximum internal strength and minimal blow-by. Chamfered piston bowls and ceramic-coated crowns help manage combustion heat more effectively, while dry film-coated skirts reduce internal friction for smoother operation. DFC installs a stage 2 billet camshaft and Manton HD pushrods to further improve valvetrain durability under high load. You also get a full top-end gasket kit and pre-installed rockers and pushrods, helping streamline the installation process. It's a balanced, ready-to-run solution that delivers both factory precision and long-haul confidence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2005-2006 Ford F-250 and F-350 with 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eEngine is rated up to 600 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eDesigned for heavy towing, hauling, and work use\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from DFC’s Street Series engine\u003c\/li\u003e\n\u003cli\u003eBuilt using only new OEM or equivalent name-brand components\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored block for oversized pistons\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder heads with all new valves and guides\u003c\/li\u003e\n\u003cli\u003eIncludes full top-end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eRockers and pushrods are pre-installed at assembly\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP or OptiTorque depending on availability\u003c\/li\u003e\n\u003cli\u003eBacked by DFC’s 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eAdditional components may be needed to complete installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52597377761564,"sku":"DDUTH60050618STSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-th60050618ausoalbhd-tow-haul-hd-series-auto-speed-of-air-long-block-2005-2006-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH60050618AUSOALBHD Tow\/Haul HD Series Auto Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eDesigned for towing between 500-750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler or Carrillo connecting rods\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smoother operation\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer improves engine stability\u003c\/li\u003e\n\u003cli\u003eHD flexplate included for added strength\u003c\/li\u003e\n\u003cli\u003eO-ringed heads improve combustion sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft enhances power delivery\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings reduce blow-by\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eManton HD pushrods installed for durability\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePush Your Powerstroke Farther Than Ever Before\u003c\/h4\u003e\n\u003cp\u003eIf you're looking to squeeze every bit of performance from your 2005-2006 F-250 or F-350 without giving up reliability, the DFC Tow\/Haul HD Series Long Block is the one to beat. This engine isn't just rebuilt, it’s upgraded from the inside out to handle serious horsepower while keeping daily drivability intact. Rated for up to 900 HP at the flywheel, it’s built for truck owners who tow heavy, drive hard, and demand more than just stock-level strength. With premium internals like Wagler or Carrillo rods, a new OEM balancer, and a heavy-duty flexplate, it delivers the extra confidence you want when pushing limits. Whether you're pulling a trailer across long hauls or running upgraded tunes and bigger injectors, this long block is ready to take the abuse and keep performing. It also includes all the performance gains from the Street and Tow\/Haul Series engines, so nothing gets left out. Backed by a 5-year, 160,000 km warranty, this build gives you the power to go big without the worry of cutting corners.\u003c\/p\u003e\n\u003ch4\u003eEngineered With Premium Parts For Extreme Output\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series Long Block from DFC Diesel is purpose-built for extreme applications where added power and durability are essential. Starting with a fully remanufactured 6.0L Powerstroke block, this engine is bored for oversized pistons and fitted with all new OEM or equivalent internals. The rotating assembly is fully balanced to handle high horsepower levels without sacrificing smooth operation. Inside the build, you'll find Wagler or Carrillo connecting rods depending on availability, ARP or OptiTorque head studs, and Total Seal gapless piston rings for optimal cylinder pressure and reduced blow-by. A stage 2 billet camshaft, ceramic-coated piston crowns, and dry film-coated skirts are also included to enhance heat resistance and reduce internal wear. Every cylinder head is resurfaced, magnafluxed, and rebuilt with new valves, seats, guides, and seals for consistent performance. A new OEM balancer and HD flexplate round out the build, supporting both street use and serious towing demands. This long block is a comprehensive solution for drivers who want to run hard and stay reliable, no matter the load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2005-2006 Ford F-250 and F-350 with 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eRecommended for towing applications between 500-750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from both Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo connecting rods included based on availability\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer and HD flexplate included in build\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly improves high-power performance\u003c\/li\u003e\n\u003cli\u003eEngine block is professionally machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eBuilt using all new OEM or equivalent name-brand internal parts\u003c\/li\u003e\n\u003cli\u003eCylinder heads are resurfaced, magnafluxed, and completely rebuilt\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eAdditional components may be required for full installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52597756461340,"sku":"DDUTH60050618AUSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-th60050618stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2005-2006-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH60050618STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block | 2005-2006 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18MM Head Dowell\u003c\/li\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eIdeal for towing 500-750 HP trailers\u003c\/li\u003e\n\u003cli\u003eIncludes balanced rotating assembly\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo rods installed\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer improves stability\u003c\/li\u003e\n\u003cli\u003eHeavy-duty flexplate supports high torque\u003c\/li\u003e\n\u003cli\u003eARP or OptiTorque head studs included\u003c\/li\u003e\n\u003cli\u003eARP connecting rod bolts pre-installed\u003c\/li\u003e\n\u003cli\u003eIncludes all Street and Tow\/Haul upgrades\u003c\/li\u003e\n\u003cli\u003eAll-new OEM or equivalent internal parts\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored engine block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTake Your Powerstroke To The Next Level\u003c\/h4\u003e\n\u003cp\u003eIf your 2005-2006 Ford F-250 or F-350 is your go-to for serious hauling or high-powered builds, the DFC Tow\/Haul HD Series Standard Speed Long Block gives you the confidence to push harder without holding back. Built to handle up to 900 horsepower at the flywheel, this long block is purpose-made for truck owners who need real-world performance on the road and at the job site. Whether you're towing heavy trailers through steep grades or just want the extra muscle for tuned street driving, this engine is equipped to deliver power and reliability side by side. It comes with all the upgrades found in DFC's Street and Tow\/Haul Series engines, then stacks on premium components like a balanced rotating assembly, new OEM balancer, and a heavy-duty flexplate. Inside, you'll find Wagler or Carrillo rods depending on availability, giving the bottom end added strength for high-stress applications. The overall result is a long block that doesn’t just meet expectations, it crushes them. With a 5-year, 160,000 km warranty backing it all up, this engine gives you peace of mind while pushing the limits of what your Powerstroke can do.\u003c\/p\u003e\n\u003ch4\u003eReinforced Internals Built For Extreme Demands\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series Standard Speed Long Block is one of DFC Diesel’s most robust 6.0L Powerstroke engine builds, tailored for truck owners running high-output applications on a regular basis. Designed to support up to 900 HP at the flywheel, this engine starts with a professionally remanufactured block, machined and bored to accept oversized pistons. It uses only new OEM or equivalent pistons, rings, and gaskets, ensuring every component meets or exceeds factory tolerances. The build includes high-strength ARP or OptiTorque head studs, ARP rod bolts, and a fully balanced rotating assembly for better engine stability under load. Wagler or Carrillo connecting rods are used to reinforce the bottom end, depending on current part availability. The heads are resurfaced, magnafluxed, and rebuilt with new seats, guides, valves, and stem seals to restore consistent airflow and sealing. A new OEM balancer and HD flexplate are also included to manage the additional stress from towing or performance upgrades. For customers who need extreme durability without sacrificing drivability, this long block delivers a complete solution from top to bottom.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2005, 2006 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2005-2006 Ford F-250 and F-350 with 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eOptimized for towing applications between 500-750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eWagler or Carrillo rods included based on availability\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly improves high-power reliability\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer and HD flexplate included in the build\u003c\/li\u003e\n\u003cli\u003eBuilt using new OEM or equivalent name-brand components\u003c\/li\u003e\n\u003cli\u003eBlock is professionally machined and bored for oversized pistons\u003c\/li\u003e\n\u003cli\u003eCylinder heads are magnafluxed, resurfaced, and fully rebuilt\u003c\/li\u003e\n\u003cli\u003eComes with rockers and pushrods already installed\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km warranty from DFC Diesel\u003c\/li\u003e\n\u003cli\u003eEngine does not include all accessories, installation components may be required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52597827043612,"sku":"DDUTH60050618STSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__67115_61c8a583-9d10-4979-95a2-9a10dd8dd8b0.jpg?v=1752770332"},{"product_id":"dfc-diesel-ss60060720ausoalb-street-series-auto-speed-of-air-long-block-2006-5-2007-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS60060720AUSOALB Street Series Auto Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eRe-manufactured to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eBuilt with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored engine block\u003c\/li\u003e\n\u003cli\u003eIncludes complete top end gasket kit\u003c\/li\u003e\n\u003cli\u003eRebuilt heads with new valves and guides\u003c\/li\u003e\n\u003cli\u003eEnhanced gasket sealing in common leak areas\u003c\/li\u003e\n\u003cli\u003eDesigned for work trucks and daily drivers\u003c\/li\u003e\n\u003cli\u003eAssembled with Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUnlock Dependable Power For Your 6.0L Workhorse\u003c\/h4\u003e\n\u003cp\u003eWhen it comes to replacing the heart of your 2006.5-2007 Ford F250 or F350, the DFC Diesel SS60060720AUSOALB Street Series Long Block delivers strength and reliability you can trust. Built for hard working trucks and everyday drivers alike, this engine is designed to handle the demands of towing, hauling, and daily use without skipping a beat. Every unit is re-manufactured to exceed OEM standards, giving you the confidence that it will stand up to real world abuse. With ARP 2000 or OptiTorque head studs and ARP connecting rod bolts already installed, you get the kind of durability that keeps everything tight under high cylinder pressures. The upgraded gasket sealing methods address common leak points, reducing downtime and keeping your truck on the road where it belongs. Each engine is also fitted with Total Seal gapless piston rings for better compression and cleaner performance under load. Backed by an industry leading 5-year, 160,000 km warranty, it is a long block that lets you drive with confidence knowing you have one of the toughest 6.0L Powerstroke replacements on the market.\u003c\/p\u003e\n\u003ch4\u003ePrecision Engineering Meets Proven Durability In Every Build\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Street Series Long Block is more than a basic replacement, it is a meticulously re-manufactured 6.0L Powerstroke engine designed for longevity and consistent performance. Each block is professionally machined and bored to accept next oversized pistons, ensuring proper tolerances and smooth operation. All new pistons, rings, bearings, gaskets, and seals are used, eliminating the guesswork of mixing old components with new. The cylinder heads are fully rebuilt with new valves, guides, hardened seats, and stem seals, then resurfaced and magnafluxed to verify structural integrity. ARP hardware throughout provides extra clamping force to handle high combustion pressures, making this long block a solid choice for stock or lightly tuned applications. The inclusion of a complete top end gasket kit simplifies installation, allowing you to finish the job without hunting for extra parts. Every engine is machined on advanced Rottler equipment, ensuring factory level precision that meets or exceeds OEM specifications. Built with quality from the inside out, this Street Series long block is a proven solution for anyone serious about restoring their Ford Powerstroke to dependable working condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eStreet Series is ideal for daily driving and work trucks\u003c\/li\u003e\n\u003cli\u003eEngine is a long block, not a complete drop-in assembly\u003c\/li\u003e\n\u003cli\u003eRequires transfer of external components from your original engine\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs based on availability\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) warranty\u003c\/li\u003e\n\u003cli\u003eUses all new pistons, rings, bearings, and gaskets\u003c\/li\u003e\n\u003cli\u003eCylinder heads are resurfaced, magnafluxed, and fully rebuilt\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler equipment for precise tolerances\u003c\/li\u003e\n\u003cli\u003eIncludes complete top end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eWarranty coverage requires proper installation and break-in procedures\u003c\/li\u003e\n\u003cli\u003eBuilt to exceed OEM specifications for reliability and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52618334044444,"sku":"DDUSS60060720AUSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__21841_bfdac174-73d2-4f07-9190-feb9826d6adb.jpg?v=1753459503"},{"product_id":"dfc-diesel-ss60060720stsoalb-street-series-standard-speed-of-air-long-block-20mm-head-dowels-2006-5-2007-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel SS60060720STSOALB Street Series Standard Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eRe-manufactured to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eBuilt with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and bearings\u003c\/li\u003e\n\u003cli\u003eProfessionally machined and bored engine block\u003c\/li\u003e\n\u003cli\u003eIncludes complete top end gasket kit\u003c\/li\u003e\n\u003cli\u003eRebuilt heads with new valves and guides\u003c\/li\u003e\n\u003cli\u003eEnhanced gasket sealing in common leak areas\u003c\/li\u003e\n\u003cli\u003eDesigned for work trucks and daily drivers\u003c\/li\u003e\n\u003cli\u003eAssembled with Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eMachined using advanced Rottler equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBring Your 6.0L Back To Life With Confidence\u003c\/h4\u003e\n\u003cp\u003eIf your 2006.5-2007 Ford F250 or F350 is ready for a fresh start, the DFC Diesel SS60060720STSOALB Street Series Long Block is built to give it exactly that. Designed for work trucks, daily drivers, and diesel enthusiasts, it offers a balance of strength and reliability that takes the guesswork out of a major engine replacement. Every engine is re-manufactured to exceed OEM standards, so you are not just getting a rebuild, you are getting a powerplant that is engineered to last. With ARP 2000 or OptiTorque head studs and ARP connecting rod bolts already installed, you can count on solid clamping force where it matters most. The improved gasket sealing methods tackle the common leak points these engines are known for, helping you avoid the frustration of downtime and expensive repairs later. Total Seal gapless piston rings provide better compression for consistent power and smoother performance under load. Backed by a 5-year, 160,000 km warranty, this Street Series Long Block is designed to keep your Powerstroke on the road and performing the way you need it to.\u003c\/p\u003e\n\u003ch4\u003eBuilt With Precision And Durability From The Ground Up\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Street Series Standard Speed Of Air Long Block is more than a replacement engine, it is a carefully engineered solution for long term reliability. Each block is professionally machined and bored for the next oversized pistons, ensuring proper clearances and smooth operation. Every build uses brand new pistons, rings, bearings, and gaskets, which eliminates the risk of worn components affecting performance. The cylinder heads are fully rebuilt with new valves, hardened seats, guides, and stem seals, then resurfaced and magnafluxed to guarantee integrity. ARP hardware throughout delivers the strength needed to handle the high cylinder pressures of the 6.0L Powerstroke, making it a dependable choice for stock or lightly tuned setups. A complete top end gasket kit is included to make installation easier and reduce the hassle of sourcing extra parts. Each engine is built using advanced Rottler machining equipment, ensuring factory level accuracy and consistency in every component. The result is a long block that combines professional craftsmanship with proven parts to restore your Ford diesel to dependable working condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eStreet Series is suited for daily driving and work use\u003c\/li\u003e\n\u003cli\u003eThis is a long block and not a full drop-in\u003c\/li\u003e\n\u003cli\u003eRequires re-use of external engine components\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs based on stock\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) warranty\u003c\/li\u003e\n\u003cli\u003eUses only brand new pistons, rings, and bearings\u003c\/li\u003e\n\u003cli\u003eCylinder heads are rebuilt, resurfaced, and magnafluxed\u003c\/li\u003e\n\u003cli\u003eProfessionally machined with precise tolerances\u003c\/li\u003e\n\u003cli\u003eComes with a complete top end gasket kit\u003c\/li\u003e\n\u003cli\u003eProper installation and break-in required for warranty coverage\u003c\/li\u003e\n\u003cli\u003eEngine built to exceed OEM standards for durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52618383130908,"sku":"DDUSS60060720STSOALB","price":13304.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_d2ce359f-fee0-40db-b5f3-6e7f4437e88e.jpg?v=1753459503"},{"product_id":"dfc-diesel-th60060720ausoalb","title":"DFC Diesel TH60060720AUSOALB Tow\/Haul Series Auto Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eRated for towing and hauling up to 600 HP\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eBuilt with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft for enhanced performance\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat protection\u003c\/li\u003e\n\u003cli\u003eDry film coated piston skirts for reduced friction\u003c\/li\u003e\n\u003cli\u003eManton HD push rods for added strength\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and gaskets installed\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block to precise tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePower Through Every Tow With A Stronger 6.0L\u003c\/h4\u003e\n\u003cp\u003eIf you are looking to give your 2006.5-2007 Ford F250 or F350 the muscle it needs to handle serious towing and hauling, the DFC Diesel TH60060720AUSOALB Tow\/Haul Series Long Block is built for the job. Designed to take on heavy loads and demanding conditions, this engine delivers the strength and reliability that working trucks require every single day. It comes packed with upgrades like O-ringed cylinder heads, Manton HD push rods, and a Stage 2 billet camshaft to help handle higher horsepower and torque demands. Ceramic coated piston crowns and dry film coated skirts provide superior heat resistance and friction reduction, extending the life of critical components under heavy stress. Total Seal gapless piston rings improve compression for more consistent pulling power and better performance under load. Whether you are towing equipment for work or hauling a trailer across the country, this long block is engineered to keep your truck performing without compromise. Backed by a 5-year, 160,000 km warranty, it gives you the confidence to push your 6.0L Powerstroke to its full potential.\u003c\/p\u003e\n\u003ch4\u003eEngineered To Withstand Heavy Loads And High Horsepower\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Tow\/Haul Series Auto Speed Of Air Long Block is designed for durability and precision, making it an ideal choice for demanding applications. Each block is professionally machined and bored to accept next oversized pistons, ensuring consistent clearances and reliable operation. The build incorporates all new pistons, rings, bearings, and gaskets, removing the uncertainty that comes with reusing old components. O-ringed cylinder heads deliver improved sealing under high cylinder pressures, while the Stage 2 billet camshaft optimizes valve timing for better torque and pulling power. Ceramic coated piston crowns manage heat effectively, and dry film coated skirts reduce friction to improve longevity in high stress environments. Manton HD push rods add the strength needed to support heavy towing and hauling loads, making this engine capable of up to 600 horsepower at the flywheel. With ARP 2000 or OptiTorque head studs and ARP connecting rod bolts included, it is built to handle the extra strain that comes with heavy duty use. Combining professional machining with proven high performance upgrades, this long block offers a dependable foundation for a hard working Ford Powerstroke.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eIdeal for towing, hauling, and high performance use\u003c\/li\u003e\n\u003cli\u003eThis is a long block, not a complete engine assembly\u003c\/li\u003e\n\u003cli\u003eExternal components from your original engine must be reused\u003c\/li\u003e\n\u003cli\u003eBuilt to handle up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eIncludes upgrades beyond the Street Series model\u003c\/li\u003e\n\u003cli\u003eComes with O-ringed cylinder heads for improved sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft enhances torque and power delivery\u003c\/li\u003e\n\u003cli\u003eCeramic and dry film piston coatings improve durability\u003c\/li\u003e\n\u003cli\u003eIncludes Manton HD push rods for added strength\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) warranty\u003c\/li\u003e\n\u003cli\u003eProper installation and break-in required for warranty coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52618434642204,"sku":"DDUTH60060720AUSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__21841_bfdac174-73d2-4f07-9190-feb9826d6adb.jpg?v=1753459503"},{"product_id":"dfc-diesel-th60060720stsoalb","title":"DFC Diesel TH60060720STSOALB Tow\/Haul Series Standard Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eRated for towing and hauling up to 600 HP\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eBuilt with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads for superior sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft for improved torque\u003c\/li\u003e\n\u003cli\u003eCeramic coated piston crowns for heat protection\u003c\/li\u003e\n\u003cli\u003eDry film coated piston skirts reduce friction\u003c\/li\u003e\n\u003cli\u003eChamfered piston bowls for optimized combustion\u003c\/li\u003e\n\u003cli\u003eManton HD push rods add durability under load\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block with precise tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGive Your Powerstroke The Strength To Handle More\u003c\/h4\u003e\n\u003cp\u003eWhen your 2006.5-2007 Ford F250 or F350 needs an engine built to take on serious towing and hauling, the DFC Diesel TH60060720STSOALB Tow\/Haul Series Long Block is the upgrade that delivers. Designed with heavy work in mind, it brings durability and pulling power that go far beyond a standard replacement. O-ringed cylinder heads provide stronger sealing under load, while the Stage 2 billet camshaft helps produce the torque needed to move big weight with confidence. Ceramic coated piston crowns and dry film coated skirts protect the engine during long hauls and heavy use by reducing heat and friction where it matters most. Manton HD push rods and ARP hardware throughout add another layer of reliability, keeping the engine together under higher pressures and extended work cycles. Total Seal gapless piston rings offer improved compression, giving you a tighter, more consistent powerband that performs under stress. Backed by a 5-year, 160,000 km warranty, this long block was built for truck owners who demand strength and endurance from their 6.0L Powerstroke every single day.\u003c\/p\u003e\n\u003ch4\u003eEngineered Upgrades That Turn A Replacement Into An Advantage\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Tow\/Haul Series Standard Speed Of Air Long Block combines precise machining with heavy duty upgrades to create a 6.0L Powerstroke engine capable of serious work. Each block is professionally bored to accept next oversized pistons, ensuring proper clearances and smooth operation under load. All new pistons, rings, bearings, and gaskets are installed to eliminate any weak links from reused components. O-ringed cylinder heads provide improved sealing for high cylinder pressures, while the Stage 2 billet camshaft is designed to enhance torque and low end response for towing and hauling applications. Ceramic coatings on the piston crowns and dry film coatings on the skirts offer better heat management and reduced friction, extending the life of the engine when operating under heavy stress. Chamfered piston bowls help optimize combustion, contributing to smoother, more efficient performance. ARP head studs and connecting rod bolts ensure rock solid clamping force to handle the additional strain of demanding use. With Total Seal gapless piston rings and a complete top end gasket kit included, this long block is a comprehensive solution for restoring and strengthening your Ford diesel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003ePerfect for heavy towing, hauling, and work applications\u003c\/li\u003e\n\u003cli\u003eThis is a long block, not a complete drop-in\u003c\/li\u003e\n\u003cli\u003eRequires re-use of external engine components\u003c\/li\u003e\n\u003cli\u003eBuilt to handle up to 600 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from the Street Series engine\u003c\/li\u003e\n\u003cli\u003eComes with O-ringed cylinder heads for better sealing\u003c\/li\u003e\n\u003cli\u003eStage 2 billet camshaft enhances torque and pulling power\u003c\/li\u003e\n\u003cli\u003eCeramic and dry film piston coatings improve durability\u003c\/li\u003e\n\u003cli\u003eManton HD push rods add strength for high load conditions\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) warranty\u003c\/li\u003e\n\u003cli\u003eProper installation and engine break-in are required for warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52618502209820,"sku":"DDUTH60060720STSOALB","price":14144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_d2ce359f-fee0-40db-b5f3-6e7f4437e88e.jpg?v=1753459503"},{"product_id":"dfc-diesel-th60060720ausoalbhd-tow-haul-hd-series-auto-speed-of-air-long-block-20mm-head-dowels-2006-5-2007-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH60060720AUSOALBHD Tow\/Haul HD Series Auto Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by 5-year, 160,000 km warranty\u003c\/li\u003e\n\u003cli\u003eBuilt to handle up to 900 HP\u003c\/li\u003e\n\u003cli\u003eRated for towing between 500 and 750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler or Carrillo connecting rods\u003c\/li\u003e\n\u003cli\u003eComes with new OEM balancer installed\u003c\/li\u003e\n\u003cli\u003eHD flexplate included for added strength\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth operation\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eBuilt with ARP connecting rod bolts\u003c\/li\u003e\n\u003cli\u003eO-ringed cylinder heads for superior sealing\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and bearings installed\u003c\/li\u003e\n\u003cli\u003eIncludes Total Seal gapless piston rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTake Your Powerstroke To The Next Level Of Strength\u003c\/h4\u003e\n\u003cp\u003eWhen it is time to build a 2006.5-2007 Ford F250 or F350 that can handle serious power, the DFC Diesel TH60060720AUSOALBHD Tow\/Haul HD Series Long Block is the solution designed for the job. Built to support up to 900 horsepower while still performing reliably on the street, this engine offers the muscle needed for heavy towing and high performance driving. It includes upgrades beyond the Street and Tow\/Haul Series, giving you the durability required for pushing your truck harder than stock. With Wagler or Carrillo connecting rods and a balanced rotating assembly, this long block is designed to take the kind of abuse that comes with hauling big loads and running high horsepower tunes. The new OEM balancer and HD flexplate add another layer of reliability, ensuring the bottom end stays together under serious torque. Whether you are towing between 500 and 750 horsepower or building a performance-focused 6.0L, this engine is designed to keep up without sacrificing longevity. Backed by a 5-year, 160,000 km warranty, it provides the confidence you need to put power to the ground.\u003c\/p\u003e\n\u003ch4\u003eHeavy Duty Components Designed For Maximum Power And Durability\u003c\/h4\u003e\n\u003cp\u003eThe DFC Diesel Tow\/Haul HD Series Auto Speed Of Air Long Block is engineered with precision and high strength components to handle demanding applications. Each build features Wagler or Carrillo connecting rods for exceptional strength under high load and high RPM conditions. A new OEM balancer and HD flexplate are included to improve balance and reliability, reducing stress on the rotating assembly during heavy towing or high performance use. The balanced rotating assembly ensures smooth operation, helping the engine manage power levels up to 900 horsepower at the flywheel. All of the upgrades from the Street and Tow\/Haul Series are retained, including O-ringed cylinder heads, ARP 2000 or OptiTorque head studs, and ARP connecting rod bolts for maximum clamping force. Total Seal gapless piston rings and all new pistons, rings, and bearings are installed for consistent compression and long term durability. Designed for trucks that tow regularly in the 500 to 750 horsepower range, this long block offers the strength to handle demanding workloads and high performance builds alike. It is a complete heavy duty solution for anyone who wants their 6.0L Powerstroke to run stronger and last longer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBuilt for up to 900 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eIdeal for towing between 500 and 750 HP regularly\u003c\/li\u003e\n\u003cli\u003eThis is a long block, not a full drop-in engine\u003c\/li\u003e\n\u003cli\u003eExternal engine components from your original motor must be reused\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from the Street and Tow\/Haul Series\u003c\/li\u003e\n\u003cli\u003eComes with Wagler or Carrillo connecting rods depending on stock\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer and HD flexplate are included\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly provides smoother operation under load\u003c\/li\u003e\n\u003cli\u003eBacked by a 5-year, 160,000 km (100,000 mi) warranty\u003c\/li\u003e\n\u003cli\u003eProper installation and correct engine break-in required for warranty\u003c\/li\u003e\n\u003cli\u003eEngine is professionally machined to exceed OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52618532421916,"sku":"DDUTH60060720AUSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__20028_d2ce359f-fee0-40db-b5f3-6e7f4437e88e.jpg?v=1753459503"},{"product_id":"dfc-diesel-th60060720stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-20mm-head-dowels-2006-5-2007-ford-f250-f350-6-0l-powerstroke","title":"DFC Diesel TH60060720STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block (20MM HEAD DOWELS) | 2006.5-2007 Ford F250\/F350 6.0L Powerstroke","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt for up to 900 horsepower\u003c\/li\u003e\n\u003cli\u003eIdeal for towing 500 to 750 HP loads\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler or Carrillo connecting rods\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smoother performance\u003c\/li\u003e\n\u003cli\u003eNew OEM balancer and HD flexplate included\u003c\/li\u003e\n\u003cli\u003e5 year 160,000 km warranty coverage\u003c\/li\u003e\n\u003cli\u003eRe-manufactured to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eAll new pistons, rings, and gaskets installed\u003c\/li\u003e\n\u003cli\u003eMagnafluxed and resurfaced cylinder heads\u003c\/li\u003e\n\u003cli\u003eARP 2000 or OptiTorque head studs\u003c\/li\u003e\n\u003cli\u003eComplete long block with top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block with oversized pistons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTake Your Powerstroke To A Whole New Level\u003c\/h4\u003e\n\u003cp\u003eWhen you are serious about towing heavy loads and still want reliable street performance, the DFC Diesel Tow\/Haul HD Series Long Block is built to deliver. Designed for 2006.5-2007 Ford F250 and F350 trucks with the 6.0L Powerstroke, this engine gives you the strength to handle up to 900 horsepower while maintaining drivability for everyday use. The upgraded balanced rotating assembly and heavy-duty components make it a dependable choice for hauling trailers in the 500 to 750 horsepower range. Inside, Wagler or Carrillo connecting rods are used to handle the added stress of big power without sacrificing longevity. A new OEM balancer and HD flexplate keep everything running smooth, whether you are on the job site or pulling a fifth-wheel down the highway. Backed by a 5-year 160,000 km warranty, this engine is built with confidence and ready to put your truck back to work. It is the perfect combination of strength, performance, and reliability for anyone who needs more out of their Powerstroke.\u003c\/p\u003e\n\u003ch4\u003eEngineered For Maximum Strength And Lasting Durability\u003c\/h4\u003e\n\u003cp\u003eEvery DFC Diesel Tow\/Haul HD Series Long Block is carefully re-manufactured to meet and exceed OEM specifications, ensuring the highest level of quality for your 6.0L Powerstroke. The block is professionally machined and bored for oversized pistons, giving you a stronger and more precise foundation than a stock rebuild. Each unit includes a complete short block assembly with new pistons, rings, and gaskets, along with fully reconditioned cylinder heads that are magnafluxed, resurfaced, and fitted with new seats, valves, and guides. ARP 2000 or OptiTorque head studs are installed to maintain cylinder pressure under extreme loads, making this engine a great choice for high horsepower builds. The inclusion of Wagler or Carrillo connecting rods adds another layer of strength, ensuring it can handle the demands of both work and performance. A balanced rotating assembly, new OEM balancer, and HD flexplate all work together to keep vibration low and reliability high. With a complete top-end gasket kit included, this long block is ready to install and built to keep your truck running strong for years to come.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2006.5, 2007 Ford F250\/F350 6.0L Powerstroke\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2006.5-2007 Ford F250\/F350 6.0L Powerstroke\u003c\/li\u003e\n\u003cli\u003eBuilt to handle up to 900 horsepower at the flywheel\u003c\/li\u003e\n\u003cli\u003eIdeal for towing applications between 500 and 750 horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eComes with Wagler or Carrillo connecting rods depending on availability\u003c\/li\u003e\n\u003cli\u003eProfessionally machined block with oversized pistons for precision fit\u003c\/li\u003e\n\u003cli\u003eIncludes a complete top-end gasket kit for installation\u003c\/li\u003e\n\u003cli\u003eBacked by a 5 year 160,000 km limited warranty\u003c\/li\u003e\n\u003cli\u003eUses all new OEM or equivalent pistons, rings, and gaskets\u003c\/li\u003e\n\u003cli\u003eEngineered with balanced rotating assembly for smoother operation\u003c\/li\u003e\n\u003cli\u003eReconditioned cylinder heads are magnafluxed and resurfaced\u003c\/li\u003e\n\u003cli\u003eIncludes ARP 2000 or OptiTorque head studs based on stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"884\" data-end=\"931\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-start=\"933\" data-end=\"1398\"\u003e\n\u003cli data-start=\"933\" data-end=\"1099\"\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1240\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1398\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1445\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-start=\"1447\" data-end=\"1706\"\u003e\n\u003cli data-start=\"1447\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1557\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1636\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1636\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1639\" data-end=\"1706\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":52652797591836,"sku":"DDUTH60060720STSOALBHD","price":20890.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dfc-diesel-soa-street-series-long-block-crate-engine-2003-ford-6.0l-power-stroke-auto-transmission-ss6003ausoalb__21841_41405ec0-3a82-48e5-aa89-832ca1972c1c.jpg?v=1754065376"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/collections\/DFC_Diesel_Brand_Logo_1.jpg?v=1746634515","url":"https:\/\/www.alligatorperformance.com\/collections\/dfc-diesel.oembed?page=9","provider":"Alligator Performance","version":"1.0","type":"link"}