DFC Diesel SS6707518SOALB Street Series Standard/Auto Speed Of Air Long Block | 2007.5-2018 Dodge RAM 6.7L Cummins

Features:

• 5 Year / 100,000 Mile Warranty
• Street Series Built for Daily Driving
• All-New OEM or Equivalent Components
• CNC Machined for Precision Fit
• ARP 2000 or OptiTorque Head Studs
• Gapless Total Seal Piston Rings
• Upgradable O-Ringed Cylinder Head
• Improved Gasket Sealing Technology
• Includes Top-End Gasket Kit
• Remanufactured to Factory Specifications
• Cylinder Head Fully Refurbished
• Pre-Set Rockers and Pushrods

Built To Handle Your Drive Like A Pro

If 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.

Engineered With Precision That Performs Under Pressure

The 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.

Fits: 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 6.7L Cummins

Notes:

• Designed for 2007.5-2018 6.7L Dodge Cummins applications
• Engine is remanufactured, not brand new
• Built for daily driving, towing, and light performance use
• Street Series is DFC’s base-level performance offering
• Does not include fuel system, turbo, or electronics
• Head studs may be ARP 2000 or OptiTorque depending on stock
• Block is machined to accept next over-sized pistons
• Includes a remanufactured cylinder head with all new internals
• Assembly includes rockers and pushrods pre-set to factory specs
• Warranty is 5 years or 100,000 miles (160,000 km)
• Intended for use in trucks with factory-like configurations
• Upgrades from stock to improve durability in known failure areas

Street Series vs Tow/Haul vs Tow/Haul HD

• Street Series: Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.

• Tow/Haul Series: All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.

• Tow/Haul HD Series: The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.

Standard/Auto vs Standard vs Auto

• Standard/Auto: Compatible with both manual and automatic transmissions. Offers the most flexibility.

• Standard: Built specifically for manual transmission configurations.

• Auto: Built specifically for automatic transmission setups.