DFC Diesel TH671116SOALBHD Tow/Haul HD Series Speed Of Air Long Block | 2011-2016 Ford F250/F350 6.7L Powerstroke

Features:

• Built to handle up to 900 horsepower
• Designed for heavy towing and hauling applications
• Upgraded crankshaft gear retention for added security
• Includes Wagler or Carrillo connecting rods
• Fluidamper reduces vibrations and improves balance
• Heavy-duty flexplate handles extreme torque loads
• Balanced rotating assembly for smooth engine operation
• Professionally machined and bored engine block
• All new OEM pistons, rings, and gaskets included
• Remanufactured cylinder heads with new valves and guides
• Complete top-end gasket kit for easier installation
• Backed by a 5-year 160,000 km warranty

Push Your Powerstroke To A Whole New Level

When you need an engine that can handle brutal towing conditions and put serious power to the ground, the DFC Diesel 6.7 Powerstroke Tow/Haul HD Series Speed Of Air Long Block is built for the challenge. Designed for 2011-2016 Ford F250 and F350 trucks, this engine is capable of supporting up to 900 horsepower while still delivering the reliability you need for everyday driving. The combination of Wagler or Carrillo connecting rods and a balanced rotating assembly provides unmatched strength and smooth performance under heavy load. A Fluidamper helps control vibration while a heavy-duty flexplate ensures the drivetrain can handle extreme torque when pulling oversized trailers. Upgraded crankshaft gear retention adds another layer of security for demanding applications, making this long block a perfect choice for both work and high-performance setups. Every engine is backed by a 5-year 160,000 km warranty, offering peace of mind along with exceptional power. Whether you are upgrading for commercial use, towing a massive fifth wheel, or building a street-driven powerhouse, this engine is designed to perform when it matters most.

Built With Precision For Extreme Towing And Performance

The DFC Diesel 6.7 Powerstroke Tow/Haul HD Series Speed Of Air Long Block is engineered with durability and precision as top priorities. Each block is professionally machined and bored to accept oversized pistons without using sleeves, ensuring strength and consistency throughout the build. Wagler or Carrillo connecting rods are included to handle the extreme stress of high horsepower and heavy towing. The Fluidamper helps manage harmonics and reduces vibration, protecting critical internal components under intense load conditions. A balanced rotating assembly and heavy-duty flexplate work together to deliver smooth, reliable operation even when pushing the engine to its limits. Upgraded crankshaft gear retention further enhances durability, reducing the risk of gear slippage under extreme torque. All new OEM pistons, rings, and gaskets are used throughout the build, guaranteeing quality and long-term performance. With a complete top-end gasket kit and factory-spec rockers preset for installation, this long block is built to provide both the power and dependability your truck demands.

Fits: 2011, 2012, 2013, 2014, 2015, 2016 Ford F250/F350 6.7L Powerstroke

Notes:

• Engine is a remanufactured 6.7L Powerstroke long block
• Compatible with 2011-2016 Ford F250 and F350 models
• Tow/Haul HD Series designed for extreme towing applications
• Rated to handle up to 900 horsepower at the flywheel
• Ideal for trucks towing between 500-700 HP regularly
• Includes Wagler or Carrillo connecting rods based on availability
• Features upgraded crankshaft gear retention for added durability
• Fluidamper included to reduce vibration and harmonics
• Heavy-duty flexplate designed to handle high torque loads
• Balanced rotating assembly provides smoother engine operation
• Uses all new OEM or equivalent pistons, rings, and gaskets
• Backed by a 5-year 160,000 km manufacturer warranty

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.