1998.5-2002 Cummins Race Head (PDM-24VRH)
Purchase to earn 9760 Dirty Dollars Learn More
Description
Description
Industrial Injection Race-spec cylinder head for 1998.5-2002 Dodge Ram 2500/3500 5.9L 24V Cummins. A fully CNC-ported and fire-ringed competition head running 120 lb performance valve springs for valvetrain stability at competition RPM.
Porting is performed on a 5-axis CNC cylinder head machine running CAD/CAM software dedicated to head porting. CNC delivers identical flow port-to-port for balanced cylinder fill, then each port is hand-blended for the final shape. Heads receive new heat-treated iron-based valve guides honed (not reamed) to size with diamond tooling, new stainless steel valves with nitrate coating, premium nickel-based non-magnetic valve seats, and a fire-ringed deck.
The intake shelf is milled off to accept a ZZ Fab side runner intake — required for the high-flow intake match this head is designed around. ZZ Fab side runner is sold separately (not stocked on DDC).
Features
Features
- 5-Axis CNC Race Porting — Hand-Blended
- Fire-Ringed & Milled Deck Surface
- New Stainless Steel Valves with Nitrate Coating
- Heat-Treated Iron-Based Valve Guides — Diamond Honed
- Premium Nickel-Based Non-Magnetic Valve Seats
- Drilled & Tapped Coolant Freeze Plugs (Steel)
- 120lb Performance Valve Springs — USA-Made, In-House Rate-Tested
- Intake Shelf Milled Off for ZZ Fab Side Runner
- Part Number: PDM-24VRH
Notes
Notes
- Race-only build. Requires a ZZ Fab side runner intake (sold separately, not stocked on DDC) to seal the milled-off intake shelf.
- For the matched race long block built around this head, see the PDM-24VRLB Race Long Block.
- Core deposit applies — keep your old cylinder head and return it to recover the deposit.
Questions and Answers
Questions and Answers
Have a Question?
Be the first to ask a question about this.


