07.5-18 Dodge 6.7L D&J Stage 3 Performance Cylinder Head

Stage 3 6.7L Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's Stage 3 6.7L Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.

D&J's Stage 3 Cummins Performance Head is designed for extreme high performance. It includes everything in their Stage 2 Cummins Performance Head, along with a D&J Stage 3 Billet Intake Manifold, oversize super alloy intake and exhaust valves, thread-in soft plugs in the head, titanium valve spring retainers, and heavy-duty extra-large intake seats. This head can only be used with 6.7L (4.212 inch) bore or larger.

Key Features:
Upgraded Valve Seats: Heavy-duty extra-large intake seats address the issue of stock intake seats falling out in 1000+ hp trucks, ensuring durability and reliability.
Thread-In Soft Plugs: Prevents soft plugs under the valve cover from coming out and filling the crankcase with coolant.
Billet Intake Manifold: Designed to keep the factory rail, lines, MAP sensor, fuel filter housing, air horn, and throttle position sensor. This ensures more even air distribution, preventing hotspots and potential piston melting.
Increased Airflow: Intake flow increased to 300 CFM, compared to the stock 165 CFM, providing enhanced performance.
Oversize Super Alloy Valves: 1.500-inch super alloy intake valves and 1.450-inch super alloy exhaust valves for improved durability and performance.

Detailed Process:
Complete Disassembly: The head is completely disassembled, and all soft plugs are removed.
Cleaning and Blasting: Thorough cleaning and blasting to ensure a pristine surface.
Crack Check: Performed to ensure structural integrity.
New Components: Installation of all-new bronze guides and heavy-duty extra-large intake seats on both intake and exhaust sides.
5-Axis CNC Porting: Performed for optimal airflow.
Thread-In Soft Plugs: Installed under the valve cover for enhanced reliability.
High-Performance CNC Valve Job: Precision CNC valve job performed for enhanced performance.
Resurfacing: The head is resurfaced to meet exact specifications.
Thorough Cleaning: Comprehensive cleaning process to eliminate all debris.
Expert Assembly: Assembled with all new valve seals, thread-in soft plugs, 115# springs, and titanium retainers.

*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. See full core details here

D&J: DJPCH100056, DJPCH100057