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1989-1998 Cummins Premium Stock Plus Head w/ Fire Rings (PDM-12VSTKH-FR)

Industrial Injection
Regular price $2,621.72 CAD

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Description

Reconditioned 12V Cummins cylinder head with fire ring grooves machined into the deck — same Premium Stock Plus build process as the PDM-12VSTKH, plus the machining required to run a fire-ring head gasket. The affordable upgrade for high-boost 12V builds where standard or O-ringed gaskets are giving up.

Heads are jet-washed, glass-beaded, and magnafluxed for cracks before any machining. New stainless valves, new heat-treated alloy guides (Rockwell 22) diamond-honed to size, multi-angle valve job on the Serdi 100, deck milled flat with MLS-compatible surface finish, and fire ring grooves cut to spec.

Assembled with new valve seals and 150 lb performance valve springs.

Features

  • Reconditioned 12V Cummins Cylinder Head
  • Fire Ring Grooves Machined for High-Boost Builds
  • New Stainless Steel Valves
  • New Heat-Treated Alloy Valve Guides (Rockwell 22), Diamond-Honed
  • Multi-Angle Valve Job (Serdi 100)
  • Milled Flat for MLS-Compatible Surface Finish
  • 150 lb Performance Valve Springs Installed
  • Bolt-On Ready
  • Part Number: PDM-12VSTKH-FR

Notes

  • 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 build.
  • Block deck must also be machined for the fire ring grooves to seat fully. Confirm machine work on the block before final torque.
  • Comes assembled but does not include the rocker assembly or pushrods.

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Vehicle Fitment - Part No: PDM-12VSTKH-FR


Product Fitment Notes
  • Fire ring head gasket (PDM-4068C) sold separately.
  • Block deck must also be machined for the fire ring grooves before final torque.
  • Head studs required.
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