Product Description
Build your own blueprint-machined 12-valve short block with the INDUSTRIAL INJECTION Performance Builder Box (PDM-12VSTBB). This Stage 1 DIY kit ships as a complete, unassembled short block package—machined, balanced, and ready for clean-room assembly—so you keep control of clearances while saving thousands in labor.
Fitment
- 1994–1998 Dodge Ram 2500/3500 with 5.9L Cummins 12-Valve
What’s Included
- Blueprint-machined block (plateau honed w/ torque plate)
- Machine-balanced crankshaft
- Machine-balanced rods w/ ARP rod bolts
- Machine-balanced, coated & chamfered pistons w/ wrist pins & rings
- Industrial Injection Stage 1 camshaft
- 12mm Gorilla girdle w/ custom ARP main studs
- Billet freeze plugs
- Coated H-series main & rod bearings
- Premium Killer Dowel Pin (KDP) kit
- New cam bearings, Cummins oil cooler, Cummins oil pump, Cummins tappets
- New lower engine gasket set
Core & Break-In Notes
- Core charge applies (block, crank, rods, cam, and crate). See product page for current breakdown.
- Run Joe Gibbs break-in oil for the first 300–500 miles on fresh assembly.
Recommended Parts (CPP internal links)
- ARP 247-4203 Head Stud Kit — 89–98 5.9L 12V
- MAHLE HS4068 Upper Head Gasket Set — 89–98 5.9L 12V (choose thickness to match your build)
- CPP Premium KDP Kit — 94–98 5.9L 12V
- Performance Camshafts — 94–98 12V (Stage 1/2 options)
- Fuel Injectors — 5.9L 12V (stock to race)
Why This Kit
- DIY control of bearing clearances & ring gaps, with pro machine work done
- Balanced rotating assembly for smooth operation at power
- Bottom-end reinforcement via girdle + ARP main studs
- Assembly flexibility: choose head gasket thickness, studs, cam degreeing, and injector size to fit goals
Cross-Reference / Alternatives
- Cummins Engine Rebuild Kits & Builder Boxes (other generations & stages)
- 94–98 12V Cummins Engine Parts & Accessories
FAQ
Is this a complete, running engine?No. It is an unassembled short block kit with all major machined components and hardware to assemble the short block. You will reuse/choose your cylinder head, head gasket thickness, fasteners, and top-end/fuel/turbo components.
Do I need machine work after delivery?Major machining is completed (bore/hone with torque plate, balancing, blue-printing). You should still measure and verify all clearances and ring gaps, then assemble in a clean environment following best practices.
What power level is Stage 1 aimed at?Stage 1 is a stout street/tow/entry-race foundation. For bigger single or compound turbos, large injectors, and higher RPM, consider upgrading to additional valvetrain, studs, and oiling mods to match your goals.
Are head studs required?Highly recommended on performance 12-valve builds. Pair with the correct head gasket thickness after deck and piston protrusion are verified.
