TH5904507STAUSOALB Tow/Haul Series Speed of Air Long Block (STD/Auto)

Features:

• Built for towing, hauling, up to 700 HP
• Includes all Street Series upgrades
• Speed of Air Hyperformance pistons included
• Stage 3 camshaft and upgraded valvetrain
• Heavy duty pushrods for added strength
• Total Seal gapless piston rings standard
• ARP or OptiTorque head studs included
• All new pistons, rings, and gaskets
• Machined on advanced Rottler equipment
• Long block with remanufactured cylinder head
• 5 year, 100,000 mile warranty

Give Your Working 5.9L A Rebuild Made For Heavy Trailers And Long Hauls

A 5.9L Cummins that tows for a living deserves more than a like for like rebuild. DFC's Tow/Haul Series starts with every Street Series upgrade and adds parts meant for heavier loads. DFC says it is built for towing, hauling, and performance applications up to 700 HP. The camshaft is a Stage 3, and the valvetrain is upgraded to match it. This Speed of Air version also has Hyperformance pistons with CNC machined dimples called turbulators. DFC and Speed of Air say those dimples help the flame burn closer to the cool chamber walls, which improves combustion efficiency. They say that can mean better fuel mileage and more pulling power, though results will vary by truck and how it is driven. For a 2004.5-2007 RAM that hooks up to a trailer every week, this long block is built for that kind of work.

Stage 3 Cam And Heavy Duty Pushrods 

The DFC Diesel TH5904507STAUSOALB is a remanufactured Tow/Haul Series Speed of Air long block for 2004.5-2007 Dodge RAM 2500 and 3500 trucks with the 5.9L Cummins, listed for standard and automatic transmissions. It includes all Street Series upgrades and adds a Stage 3 camshaft, an upgraded valvetrain, and heavy duty pushrods. DFC builds the Tow/Haul Series for performance applications up to 700 HP, measured at the flywheel like factory ratings. The Speed of Air Hyperformance pistons have patented turbulator indentations CNC machined into the piston top, and they carry thermal barrier and anti friction coatings. Total Seal gapless piston rings are standard, and the engine is assembled with ARP or OptiTorque head studs. DFC says each cylinder head gets new cast valve guides, all new valves, and new SBI valve seats to address common head cracking. The block is machined on Rottler equipment to tighter than OEM specifications. DFC backs the engine with a limited 5 year, 160,000 km (100,000 mile) parts and labor warranty.

Fitment: 2004.5, 2005, 2006, 2007 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Tow/Haul Series includes all Street Series upgrades plus added towing and performance parts
• Built for performance applications up to 700 HP, rated HP is measured at the flywheel like factory ratings
• Built with Speed of Air Hyperformance pistons
• Fuel mileage and power gains are manufacturer claims, results will vary
• Long block consists of a short block with a remanufactured cylinder head
• Component brands are chosen at DFC's discretion and cannot be specially requested
• Warranty is 5 years or 160,000 km (100,000 miles) parts and labor, DFC notes terms may vary, so review the full warranty information
  
• $500 shipping charge/$2,800 core charge
• California shipping restriction for this SKU