i have an 05 3500 i was just wondering if i could use a 01-03 short block assembly in my truck. iwas told it would be easier to find a block then transfer my parts on to it than to just take it out and tear it apart and get it bored. is there different provisions for the fuel pumps on the block(cp3 vp 44 p-pump)also was there big differences in cams between years and between trannies?

 

I do not remember the details , but a costume shop near hear went to build a competition / race engine , 24 v with P-pump , then showed the gathering how much difference a verity of different turbos make , he said & showed that a block and those yrs was heavier casting than others .
So do you just want to get it running or continue modding - make it better .

 

it all depends on how much a block is going to ding me. if i can find a cheap block il probably mod but if not just a replacement for now it is my work truck

 

'03 is when the CR engine came out so I would stay with line. As well the SO engines('03 and older) don't have as good piston cooling as the HO engines('03 and newer). It sounds like you want to make big power so you should look for an '03 or newer HO engine.

 

does anybody know were to get a good bare block for an o3 or newer
the rest of my motor is good

 

Is the piston cooling nozzle the only differance? All 4bt and 6bt's and C model Cummins use a PLASTIC nozzle inserted in the upper main bore. It goes in before you install the upper bearing shell. Have not looked at the differance in awhile, thats why I ask...The ECM has nothing to do with the piston cooling. That is done by oil...from the main bearing line..........

 

I believe it's just that and different ECM settings. I still don't know why they didn't use a cooler nozzle on the SO engines??

 

Posted by Nate :I believe it's just that and different ECM settings. I still don't know why they didn't use a cooler nozzle on the SO engines??
Nate-03 DPosted by Riflemanusmc: The ECM has nothing to do with piston cooling. its all done by the cooling nozzle in the upper part of the main bearing line. Its a steady pressure oiling cooling. Cools the piston when its at BDC.

 

How bad is your block? What caused it to fail? I would just tear yours down and rework it and the head.

 

I' m aware that the ECM doesn't have any relation to the cooler nozzles. I was stating that the difference between the SO was the oil coolers and the ECM programming. I'm sure it's something else as well, i' m just not sure what.

 

I've been told the bowl in the piston is different as well but I have not opened an SO engine to compare to the HO sitting on my garage floor. I've also been told that the injectors are different, but I've been told that they are interchangeable by some people and others say they aren't, yet I've never seen manufactures of injectors specify different part numbers for HO and SO CR engines.

 

BTW I just finished swapping a SO engine into my '03 that originally came with an HO engine. I swapped the SO in as a complete unit but used the ECM from the HO engine(the truck ECM didn't like the SO's ecm and threw a security code). Also used the HO turbo as it was in better shape but they both used the same model turbo.

Power seemed down from what the HO engine had but I think the HO engine may have had aftermarket injectors. Don't know the trucks history as I bought it with a bad engine just recently.

 

crashcade from what the dealership said it has very low compression in the the #5 cylinder. the only reason i was looking for a different block was for down time. i'm a welder so my truck is my pay check

 

If your current block checks out fine couldn't you just save time and money by doing a quick rebuild? Just go through it and do rings, gaskets, and what ever else needs to be replaced.

 

since i'm going in this far is it worth putting the cam and springs into this if i only want around 600hp with twins