DFC Diesel TH6003AUSOALB Tow/Haul Series Auto Speed Of Air Long Block | 2003 Ford F250/F350 6.0L Powerstroke

Features:

• Built for towing, hauling, and performance
• 5-year / 160,000 km warranty for peace of mind
• Rated for up to 550 HP with performance upgrades
• All new OEM or equivalent pistons, rings, and gaskets
• Upgraded with Stage 2 billet camshaft for improved power
• Chamfered piston bowls for enhanced combustion efficiency
• Ceramic-coated piston crowns for heat resistance
• Dry film-coated skirts to reduce friction
• O-ringed cylinder heads for improved sealing
• Manton HD push rods for durability
• Includes ARP series 2000 head studs or OptiTorque head studs
• Complete long block assembly for easy installation

The Engine That Will Power Your Toughest Jobs

When 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.

Engineered for Performance and Durability

The 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.

Fits: 2003 Ford F250/F350 6.0L Powerstroke

Notes:

• Designed specifically for 2003 Ford F250/F350 6.0L Powerstroke
• Built for towing, hauling, and high-performance applications
• Ideal for applications requiring up to 550 HP
• Requires professional installation for optimal performance
• Rated HP is measured at the flywheel (same as factory ratings)
• Stage 2 billet camshaft provides enhanced power delivery
• Includes ceramic-coated piston crowns for heat resistance
• Engine components are built for durability under heavy stress
• Engine designed with O-ringed cylinder heads for better sealing
• All components are made to exceed OEM specifications
• Engine comes with a comprehensive 5-year / 160,000 km warranty
• Available as part of the Tow/Haul Series for increased towing capabilities

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.