DFC Diesel TH60050618STSOALBHD Tow/Haul HD Series Standard Speed Of Air Long Block | 2005-2006 Ford F250/F350 6.0L Powerstroke

Features:

• 18MM Head Dowell
• Built for up to 900 horsepower
• Ideal for towing 500-750 HP trailers
• Includes balanced rotating assembly
• Wagler or Carrillo rods installed
• New OEM balancer improves stability
• Heavy-duty flexplate supports high torque
• ARP or OptiTorque head studs included
• ARP connecting rod bolts pre-installed
• Includes all Street and Tow/Haul upgrades
• All-new OEM or equivalent internal parts
• Backed by 5-year, 160,000 km warranty
• Professionally machined and bored engine block

Take Your Powerstroke To The Next Level

If 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.

Reinforced Internals Built For Extreme Demands

The 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.

Fits: 2005, 2006 Ford F250/F350 6.0L Powerstroke

Notes:

• Fits 2005-2006 Ford F-250 and F-350 with 6.0L Powerstroke
• Rated for up to 900 horsepower at the flywheel
• Optimized for towing applications between 500-750 HP
• Includes all upgrades from Street and Tow/Haul Series engines
• Wagler or Carrillo rods included based on availability
• Balanced rotating assembly improves high-power reliability
• New OEM balancer and HD flexplate included in the build
• Built using new OEM or equivalent name-brand components
• Block is professionally machined and bored for oversized pistons
• Cylinder heads are magnafluxed, resurfaced, and fully rebuilt
• Comes with rockers and pushrods already installed
• Backed by a 5-year, 160,000 km warranty from DFC Diesel
• Engine does not include all accessories, installation components may be required

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.