5.9L Cummins 24 Valve Non-Common-Rail Cylinder Heads

This enhanced Cummins diesel engine cylinder head stands out as an excellent upgrade from stock, offering superior performance and reliability.

Cummins 5.9 24V VP44 Remanufactured Diesel Engine Cylinder Head Features :

• Resurfaced Cylinder Head To Meet Or Exceed OEM Specification of Ra or Roughness Average, which maximizes sealing surface performance.
• New Valve Stem Seals
• New Valve Guides
• New Larger Upgraded Intake Valve Seats
• New Larger Upgraded Exhaust Valve Seats
• Threaded “Blow Proof” Plugs In the Top Of The Head.
• Regrind Valves and inspect margins for proper sealing.
• Cut seats with 3 angles and optimize flow.

Cleaning Process :

Once it passes our inspection for cracks and imperfections through MPI testing, it will then undergo a stress-relieving process in a furnace to turn any grease and oil into ash. Subsequently, it will be shot blasted in our cabinet to remove any rust and scaling. This step not only eliminates surface contaminants but also relaxes the material before machining to our specifications.
After this it will be checked for any broken bolts or studs, and removed.
Once the cylinder head has met our stringent standards, it will then start through the machining process.

Machining Process :

We meticulously blueprint our heads to a proprietary valve train geometry, carefully adjusting valve height and recession to maximize reliability and longevity. By modifying valve stem heights, we eliminate lifter preload, reducing wear and promoting a longer lifter lifespan.

Inspection Process

After machining, we pressure-test the Cummins cylinder heads at 40 PSI to ensure leak-free performance. Following MPI inspection for cracks and imperfections, the component undergoes stress-relieving in a furnace to eliminate grease and oil residues. It then proceeds to shot blasting in our cabinet, removing rust and scaling while preparing the material for machining to our specifications.

This meticulous process includes precise measurements of valve recessions, stem heights, spring installations, pressures, and keeper/lock positions, with surface roughness analyzed using a profilometer.

Tech Tip:

Please be sure that the surface of the block has been inspected and cleaned prior to installation of this Cylinder Head.

5.9L Cummins 24 Valve Non-Common-Rail Cylinder Heads
Choate Part Number: CEP59CH24VVP2
Fitment: 1998, 1999, 2000, 2001, 2002, 2003  Dodge Ram Cummins Equipped Vehicles
Manufacturer: Choate Engineering Performance.