Dodge Diesel Tech Articles All Years of Cummins Tech Talk

VP44 - P7100 conversion

Old 09-28-2009, 01:05 AM
Diesel Fan
Join Date: Sep 2009
Location: Mt. Airy Maryland
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts

Originally Posted by Dr. Evil View Post
That is not exactly accurate - the cost is no where near $11-12K...a buddy did his for $3-4k. He loves it and would not go back. He is using the 24V injectors as well.
thats true it can be done for a reasonable price and u can use 24v injectors cuz i know of a guy who used the mach 7 24v injectors thats are now in my 24v vp truck on his ppump convertd 24v cummins it also uses a commonrail head aswell
Old 10-06-2009, 11:09 PM
Diesel Fan
Join Date: Aug 2009
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts

Originally Posted by cummins cowboy View Post
Hi this is my first post here! Anyway I just got done with my p-pump conversion yesterday. it was a little time consuming but it was a fairly simple job. I was able to complete it in around 20 hours. The easiest way is to find a 12 valve truck for parts and it is pretty much just a bolt on deal. There are a few mods you have to make like relocating the computer and grinding the head a little to clear the oil supply to the pump but other than that is was pretty much just bolt on. I'm very happy with the way it runs and it should be awesome once i spend some time tuning the pump. If you look around and find parts cheap you should be able to do the job for under $2000 including lines. Anyway just figured I'd put in my .02 worth.
this guy did it right and spent waaaaayyy less than the 10-12k mentioned before
i would like to have a p-pumped 24 valve....just cool
Old 10-07-2009, 01:14 AM
tower_ofpower's Avatar
Diesel Bomber
Join Date: Jul 2009
Location: Kingwood, WV
Posts: 1,861
Received 86 Likes on 80 Posts

the "its alive!!!" truck sounds AMAZING, the old VE44 knocks and rattles and isnt quite as smooth. its an interesting concept with some awesome dyno numbers. i'd do it if i have a 24v and abunch of money to mess with
Old 10-08-2009, 12:25 AM
davo79's Avatar
Diesel Enthusiast
Join Date: Nov 2008
Location: california
Posts: 435
Received 4 Likes on 4 Posts

Originally Posted by Lostnwalmart View Post
it should swap over but you will need a 24v cam the 12v cam and 24v cam have different thickneses and if you run the 12v can you will reduce your lift. and therefore will need an electric lift pump at least that is what i have heard. and you can run 24v injectors that are still set up for a vp44 it will just run better set up for a p pump
Not entirely true you can get longer pushrods from schied for this conversion you also have to change the pistons as said already and the injector lines
Old 12-23-2009, 08:13 AM
Join Date: Dec 2009
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts

from what i've heard 12 and 24 valves use different pistons due to the location of the injector in the head. so to switch the heads the rotating assembly would need to be changed as well.
Old 01-18-2010, 07:51 PM
Join Date: Jan 2010
Posts: 2
Likes: 0
Received 1 Like on 1 Post

i sure would like to talk to you about this conversion. iam fixing to do this. any help would be greatly appreciated thanks russell [email protected]
Old 01-18-2010, 08:19 PM
scottsjeeprolet's Avatar
Go RAVENS!!!!!!!!!
Join Date: Mar 2007
Location: Kingsville, MD
Posts: 1,145
Received 229 Likes on 113 Posts

Here's everything you ever wanted to know about the swap.P-Pump 24Valve - Competition Diesel.Com - Bringing The BEST Together
I've seen one done myself.
He just did 1167HP - 2K+ tq on nitros and 714HP fuel only.
Old 01-19-2010, 11:42 PM
seandonato73's Avatar
Diesel Wrench
Join Date: Oct 2009
Location: lebanon, Pa
Posts: 603
Received 9 Likes on 9 Posts

so with the use a 12v block an switch the head or just use a 24v and use the p-pump, which engine has the better block? isn't that more what you should be looking at, at least if you were going for power, i would want the strong block. any input?
Old 02-08-2010, 09:30 PM
jesse's Avatar
Diesel Enthusiast
Join Date: Feb 2008
Location: Plymouth, MA
Posts: 152
Received 13 Likes on 8 Posts

I think I would want the stronger block also. I was thinking about doing the p-pump conversion to my 24 valve, but after reading this I think it would be a better idea to swap my 24 valve head over to a 12 valve block because I have the 53 block.
Old 02-09-2010, 12:37 PM
wes-cummins's Avatar
Diesel Wrench
Join Date: Dec 2009
Location: wisconsin
Posts: 576
Received 10 Likes on 9 Posts

whats a 53 block? i know the #1 main on the 24 valve blocks are bigger according to the service manual

Thread Tools
Search this Thread
Quick Reply: VP44 - P7100 conversion

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.