1996 Dodge 2500 12 Valve Cummins to 24 Valve Cummins Conversion

[6lcummins]

I finally got all the parts rounded up and started doing this conversion a few weeks ago, as I had time. I had traded a 12V for a running 2000 HO 24V that had a 3-day-old VP44 on it when it was wrecked. It turns out the engine is a 53 block and instead of rebuilding one of my spare 12V lower ends we are going to see just how long the 200,000+ mile 53 block lasts. I planned on a mild build originally but with parts lying around it has turned into a pretty aggressive street build. Currently it has a stock cam and valve train along with stock push rods. It now has a 180 P7100 in place of the HO VP44, it has full cut DV’s, 0 plate and a Columbus Diesel 5K GSK. It feeds 7*0.014” SAC injectors that I built and set to 285 bar. The truck already has a South Bend 3400 Dual Disc and for the time being will be running a Schwitzer S366SX3 turbo until I can figure out which compound setup I want to run.

Tearing the engine down on the ground as the engine stand is full of a 12V







Swapping the 24V(right) cam gear with the 12V(left) cam gear









P7100 Front Gear Housing/VP44 Front Gear Housing/New P7100 Front Gear Housing


Timing Pin Housing: Notice the “Star” washer that holds the timing pin in place. Discarded due to the fact its not needed and is a PITA to get out with P7100 and vacuum pump/power steering pump installed.


Transferring mounting studs and timing pin housing to new P7100 Gear Housing


Cleaning and Installing New P7100 Gear Housing



Installing Cam



Replacing Rear Main Seal






Aligning timing marks and reinstalling oil pump




Oil pickup tube and oil pan installation




Tappet Cover Installation



P7100 Mock Up



Over Flow Valve clears without issue


Factory 12V oil feed location


Moved the oil fitting to the driver side of the P7100 for easier installation of the oil line and used an extra port on the block just behind the P7100 for dedicated oil feed for P7100


Vacuum Pump/PS Pump and oil feed lines mock up





Intake Plenum and Lift Pump masked off for paint




P7100 24V Conversion Lines mocked up




Installed primary turbo drain and A/C water inlet installed




ARP Studs Installed
















Installing stock pushrods and valve train









Painted block VHT Gloss Black Industrial 24V Valve Cover and Lift Pump Delete








New Water Pump, Front Seal/wear Sleeve, and KDP Fixed









Rear and Side Billet Freeze Plugs







Rear Adapter and Clutch Install





Coolant Bypass




P7100 Modification



Injector Install



Final Assembly








































Started for the first time and found timing to be off


I retimed it but don't have a good video of it right now but will post one when I get a new one.