1998-2002 Cummins Stage 1 Performance Head (DJPCH100067)

Fits

Unlock the potential to burn more fuel and generate increased power effortlessly, these D&J Performance Heads deliver enhanced power without the added expense and complexity of an aftermarket intake.

Part Number: DJPCH100067

• 105-pound valve springs
• 5 axis port job while retaining the factory intake plenum
• Increases the flow on the intake from around 155 CFM stock to 220 CFM
• Increases low end performance
• Decreases boost pressure
• Lowers EGT's
• Increasing the amount of fuel you can burn & make more power

• Use your own head or one of our head cores
• Head is disassembled & all soft plugs are removed
• Cleaned and blasted
• Crack check performed
• All new bronze guides are installed
• HD extra large seats placed in intake and exhaust side
• 5 axis CNC port with stock intake shelf in place
• High performance valve job performed
• Resurfaced
• Cleaned
• Painted
• Assembled with all new valve seals, soft plugs and HD springs
• Valves and Coolant Passages are pressure checked

• Cores must be good with no cracks must be a rebuildable core. D&J Precision will inspect your core on arrival and determine if it is a good core.