6.7 CR HP Reman Cummins Cylinder Head

Our 6.7 CR HP Reman Cylinder Head includes essential upgrades to ensure durability and reliability, addressing common issues associated with these heads. One prevalent problem with factory and many aftermarket heads is the valve seats loosening and falling out, causing significant engine damage and downtime. Our reman head is a great option for upgrading your stock or performance truck, providing preventative maintenance to save you from costly repairs.

Key Features:

• Upgraded Valve Seats: Taller and larger diameter than stock, made from a heat-resistant alloy to prevent loosening and falling out.
• Improved Heat Dissipation: Larger seats dissipate heat better into the casting, reducing the risk of cracking.
• Genuine Cummins Valves: Only genuine Cummins valves are used, known for their exceptional durability.
• Thread-In Soft Plugs: Installed under the valve cover for enhanced reliability.

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 HD extra-large seats on both intake and exhaust sides.
• High-Performance Valve Job: Precision CNC valve job performed for optimal performance.
• Resurfacing: The head is resurfaced to meet exact specifications.
• Thorough Cleaning: Comprehensive cleaning process to eliminate all debris.
• Professional Painting: Painted for a durable and professional finish.
• Expert Assembly: Assembled with all new valve seals and soft plugs for maximum reliability.

Important 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.

Upgrade your truck's performance and reliability with our 6.7 CR HP Reman Cylinder Head.