SS672124CP3SOALB Street Series Speed of Air Long Block (STD/Auto)

Features:

• Speed of Air Hyperformance pistons included
• CNC-machined turbulator dimples on piston tops
• Total Seal gapless piston rings standard
• Retro build uses 2018-era block components
• Flat tappet valvetrain replaces roller lifters
• ARP Series 2000 or OptiTorque head studs
• Machined on advanced Rottler equipment
• Improved gasket sealing in common leak areas
• All new pistons, rings, bearings, valves, and seals
• Upgradable to an O-ringed cylinder head
• For G56 manual and 68RFE automatic
• 5 year, 100,000 mile warranty

A Late Model Cummins Rebuilt Around Tougher Hardware And Smarter Pistons

A late model 6.7L Cummins should be an easy truck to own, which makes an engine failure especially frustrating. DFC calls its Street Series its flagship line for 6.7 Cummins upgrades. It is built for work trucks, daily drivers, and diesel enthusiasts. For 2021 to 2024 trucks, DFC uses a retro block with 2018 era components. It also swaps the roller lifters for a flat tappet system, which DFC says targets the camshaft and lifter failures it associates with newer trucks. This Speed of Air version adds 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 power, though results will vary by truck and how it is driven.

Hyperformance Pistons Built Into A Rottler Machined Block

The DFC Diesel SS672124CP3SOALB is a remanufactured Street Series Speed of Air long block for 2021-2024 Dodge RAM 2500 and 3500 trucks with the 6.7L Cummins. It is listed for the CP3 configuration with the G56 manual and 68RFE automatic transmissions. DFC says its retro block uses 2018 era components and replaces roller lifters with a flat tappet system. It also adds a stronger cam, valve springs, and heads, and uses silicone sealing instead of paper gaskets. 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. Every engine comes with Total Seal gapless rings and all new pistons, rings, bearings, gaskets, seals, valves, springs, hardened seats, stem seals, and cast guides. The block is machined on Rottler equipment and assembled with ARP Series 2000 or OptiTorque head studs, depending on availability. DFC backs the engine with a limited 5 year, 100,000 mile warranty and asks for your VIN before ordering.

Fitment: 2021, 2022, 2023, 2024 Dodge RAM 2500/3500 6.7L Cummins (CP3)

Notes:

• A VIN is required to confirm the best possible fit, call before ordering if the engine is for a different make or model
• Listed for 2021-2024 trucks in the CP3 configuration, confirm your injection pump setup before ordering
• Listed for use with the G56 manual transmission and the 68RFE automatic transmission, confirm your transmission before ordering
• Built on a retro block with 2018 era components and a flat tappet valvetrain, per DFC
• Built with Speed of Air Hyperformance pistons
• Fuel mileage, power, and torque gains are manufacturer claims, results will vary
• Head studs are ARP Series 2000 or OptiTorque, depending on availability
• Upgradable to an O-ringed cylinder head
• DFC limited standard warranty is 5 years or 100,000 miles, labor reimbursement is capped at $100 per hour, up to 40 hours, $4,000 maximum
• $500 shipping charge/$2,800 core charge 
  
• California shipping restriction for this SKU
• California Proposition 65 warning applies to this product