1989-1998 Cummins Race Head (PDM-12VRH)

Name: 1989-1998 Cummins Race Head (PDM-12VRH)
Brand: Industrial Injection
SKU: PDM-12VRH
Price: 9095.89 CAD
Availability: InStock

Industrial Injection Part Number: PDM-12VRH

$9,095.89 CAD

Notices

This item may have additional freight costs. Learn More

This product will automatically bundle the following item:

Core Charges
After you have made your purchase, please follow the steps listed below to receive your refundable Core charge. This process must be completed within 60 days of receiving your product(s). Failure to send us the core(s) within the 60 day timeframe will result in you only receiving a partial refund amount of the core deposit.

1) On the outside of the ORIGINAL box, please write "Core Return" and your Original Invoice Number/Order Number.

2) Ship your core with tracking to:

Unit 6 - 1060 Stevens Road, West Kelowna BC Canada V1Z1A3

3) Once we receive the Core here at the shop, it will be inspected to ensure that it is rebuildable. After the inspection is passed, your core charge will then be refunded (giving you more money for truck parts!).

Note:

Dirty Diesel Customs does not cover return shipping costs for core items. You are responsible for all shipping expenses associated with returning their core.

If you have purchased a BD Diesel product, please follow their core-return program which can be found here.

If you have purchased a Fleece Performance product that has a core charge, please follow the Fleece Performance Core Return instructions found here.

If you have purchased a Randys Transmission product, we must receive the core no later than 30 Days after the product delivery date.

Failure to follow these steps may result in a delay/denial of your core refund.

Failure to send us the core(s) within the 60-day timeframe will result in you only receiving a partial refund amount of the core deposit.

0-60 Days: Full Deposit if the core passes the inspection.

61-120 Days: 25% of your eligible core refund amount will be deducted.

121-182 Days: 50% of your eligible core refund amount will be deducted.

183+ Days: Your Core Charge is no longer refundable

Let us know if you have any questions or concerns. We can be reached at 778-754-7090 or feel free to email sales@dirtydieselcustoms.com.

Purchase to earn 9095 Dirty Dollars Learn More

Truck Fitment

Description

Race-spec CNC-ported cylinder head for 1989-1998 Dodge 5.9L 12V Cummins engines. Built for the sled puller, drag truck, or dyno queen — every machining step on this head is calibrated for maximum airflow and durability under sustained high EGT.

Porting is done on a 5-axis CNC porting machine with CAD/CAM software developed specifically for cylinder heads, then validated on a Superflow 600 flow bench. Port walls are kept thick enough to survive the thermal shock of sustained high EGT runs without cracking. Premium nickel-based non-magnetic valve seats are installed where the original seats won't hold up.

The intake runner is milled to accept a ZZ Fab-style billet intake (sold separately). Fire-ring grooves are machined into the deck for use with a radius-cut steel fire ring head gasket (sold separately). Drilled-and-tapped coolant freeze plugs replace the leak-prone factory press-in plugs with steel screw-in units. Stainless valves with nitrate coating, heat-treated alloy guides (Rockwell 22) diamond-honed to size, and 150 lb performance valve springs round out the build.

Features

5-Axis CNC Ported & Flow-Bench Validated
Intake Runner Milled for ZZ Fab-Style Billet Intake
Premium Ni-Based Non-Magnetic Valve Seats
New Stainless Steel Valves with Nitrate Coating
Heat-Treated Alloy Valve Guides (Rockwell 22), Diamond-Honed
Drilled & Tapped Coolant Freeze Plugs (Steel)
Fire Ring Grooves Machined into Deck
150 lb Performance Valve Springs
Multi-Angle Valve Job (Serdi 100)
MLS-Compatible Surface Finish
Part Number: PDM-12VRH

Notes

Intake manifold sold separately. The intake runner is milled for a ZZ Fab-style billet intake — a factory or stock-style intake will not seal up cleanly.
Fire ring head gasket (PDM-4068C) sold separately. Required to take advantage of the fire-ring grooves.
Head studs required — head bolts won't hold clamping load on a fire-ringed race build.
Comes assembled but does not include the rocker assembly or pushrods.

Questions and Answers

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Vehicle Fitment - Part No: PDM-12VRH

Product Fitment Notes

Intake runner is milled for a ZZ Fab-style billet intake (sold separately) — a factory intake will not seal up cleanly.
Fire ring head gasket (PDM-4068C) sold separately.
Head studs required on any fire-ringed build.

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