Industrial Injection PDM-24VRH Stage 2 Ported & Polished Cylinder Head with Fire Ring Grooves 98.5-02 Dodge 5.9L 24V Cummins

The Industrial Injection PDM-24VRH Stage 2 Ported & Polished Cylinder Head with Fire Ring Grooves is designed for ultimate power and reliability in 1998.5-2002 Dodge Ram 5.9L 24-valve Cummins engines. This fully CNC ported head comes complete and ready to bolt on, making it ideal for serious diesel performance applications including street racing, sled pulling, and high-horsepower builds.

Advanced CNC Porting Technology:

The porting process utilizes a 5-axis CNC cylinder head porting machine with CAD/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy with each port flowing the same, helping balance the power that each cylinder produces and making tuning easier. After the CNC process, each port is hand blended to perfection.

Premium Components Include:

• Intake shelf machined off to accept intake runner
• CNC ported cylinder head with performance hand blending
• Custom performance stainless steel nitride coated valves for ultimate durability
• Premium oversized high-temp alloy valve seats with higher press-in value
• Diamond honed high-strength hardened alloy valve guides heat treated to Rockwell 22 scale for ultimate wear resistance
• Drilled and tapped coolant freeze plugs
• Performance 120lb valve springs custom made in the USA
• Radius cut fire ring grooves designed to work with custom fire ring head gasket to virtually eliminate head gasket failures

Quality Assurance Process:

Port development is accomplished using a Superflow 600 flow bench with computer recording of all flow measurements. Port wall thickness is carefully monitored during porting to prevent casting cracks that can occur when wall thickness is compromised.

Note: Core charge applies. Fire ring head gasket sold separately (PDM-54174 recommended).