D&J Precision Machine Stage 1 Performance Cylinder Head With Fire Rings DJPCH100027

The D&J Precision Machine Stage 1 Performance Cylinder Head With Fire Rings DJPCH100027 is a step up in performance for your 3rd Gen Dodge 5.9L Diesel. This head includes everything from their reman head along with 105-pound valve springs and a 5-axis port job while retaining the factory intake plenum. This increases the flow on the intake from around 155 CFM stock to 220 CFM, enhancing low-end performance, decreasing boost pressure, and lowering EGTs. This, in turn, increases the amount of fuel you can burn, allowing you to make more power.

Detailed Process:
Painted For A Durable And Professional Finish.
The Head Is Resurfaced To Meet Exact Specifications.
Head Is Disassembled, And All Soft Plugs Are Removed.
Crack Check Performed To Ensure Structural Integrity.
Comprehensive Cleaning Process To Eliminate All Debris.
Precision CNC Valve Job Performed For Enhanced Performance.
Thorough Cleaning And Blasting To Ensure A Pristine Surface.
Assembled With All New Valve Seals, Soft Plugs, And HD Springs.
5-Axis CNC Porting Performed With The Stock Intake Shelf In Place For Optimal Airflow.
Valves And Coolant Passages Are Pressure Checked To Ensure Top Quality And Reliability.
Installation Of All-New Bronze Guides And HD Extra-Large Seats On Both Intake And Exhaust Sides.

Manufacturer Warranty*:
1 Year Limited

Note: Cores must be in good condition with no cracks and must be rebuildable. D&J Precision Machine will inspect your core upon arrival to determine its suitability for rebuilding.