DFC Diesel TH671116SOALB Tow/Haul Series Speed Of Air Long Block | 2011-2016 Ford F250/F350 6.7L Powerstroke

Features:

• Built to handle up to 550 horsepower
• Designed for towing and heavy hauling applications
• Includes ARP or OptiTorque head studs
• Ceramic coated piston crowns for heat resistance
• Dry film coated skirts reduce friction and wear
• Includes Manton heavy-duty push rods
• Pinned crankshaft gear prevents gear slippage
• Total Seal gapless piston rings for better sealing
• All rockers preset to exact factory specifications
• Complete long block with cylinder heads included
• Professionally machined and bored engine block
• Backed by a 5-year 160,000 km warranty

Unlock The Power Your Powerstroke Was Meant To Have

When it comes to towing serious weight or hauling demanding loads, the right engine can turn your Ford Super Duty into a whole new machine. The DFC Diesel Tow/Haul Series Speed Of Air Long Block is built to give your 2011-2016 F250 or F350 the strength and reliability it needs for the toughest jobs. Designed to handle up to 550 horsepower, this engine strikes the perfect balance between everyday drivability and heavy-duty performance. Ceramic coated piston crowns and dry film coated skirts help manage extreme heat and reduce friction, making it ideal for long hauls and sustained workloads. Manton heavy-duty push rods and a pinned crankshaft gear ensure that every component can handle the stress of towing and performance applications. Backed by a 5-year 160,000 km warranty, it offers peace of mind along with serious pulling power. Whether you are hauling equipment, towing a camper, or putting your truck to work on the job site, this build provides the durability and muscle to keep you moving without hesitation.

Engineered With Precision For Demanding Towing Applications

The DFC Diesel Tow/Haul Series Speed Of Air Long Block is carefully remanufactured to exceed OEM standards while addressing common weak points in the 6.7 Powerstroke platform. Each block is professionally machined and bored for oversized pistons, ensuring a precise fit and smooth operation under heavy load. The inclusion of ARP or OptiTorque head studs provides exceptional clamping strength, helping maintain head gasket integrity under high cylinder pressures. Ceramic coated piston crowns and dry film coated skirts improve heat resistance and reduce wear, making the engine more efficient and longer lasting. Manton heavy-duty push rods are included to handle high-stress towing situations, while a pinned crankshaft gear prevents gear slippage under intense torque. Total Seal gapless piston rings are standard, delivering better sealing and improved performance. With all rockers preset to factory specifications and a complete top-end gasket kit included, installation is straightforward and reliable. This long block offers the strength, consistency, and precision engineering needed for trucks that see heavy towing and hard work every day.

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 Series designed for towing and hauling applications
• Rated to handle up to 550 horsepower at the flywheel
• Includes all upgrades from the Street Series engine
• Comes with ARP or OptiTorque head studs depending on availability
• Ceramic coated piston crowns help manage high heat levels
• Dry film coated piston skirts reduce friction and wear
• Manton heavy-duty push rods included for added strength
• Pinned crankshaft gear prevents gear slippage under heavy load
• Uses all new OEM or equivalent pistons, rings, and gaskets
• Backed by a 5-year 160,000 km 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.