D&J’s Stage 1 24v Cummins performance cylinder head is a step up in performance without the extra expense and work involved with aftermarket intakes. The Stage 1 Cummins performance head includes everything in D&J’s Performance Cummins Reman Head along with 105-lb. valve springs, 5-axis CNC porting, while retaining the factory intake plenum, increasing low end performance, decreasing boost pressure, and lowering EGTs, increasing the amount of fuel you can burn and make more power.
- You’re given the option to use your own head or one of D&J’s head cores
- Head is disassembled and all soft plugs are removed
- Cleaned and blasted
- Crack check performed
- All new bronze guides are installed
- Heavy-Duty extra large seats placed in 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
- Thread in soft plugs under the valve cover
