95 Yukon "C" to "J" swap

[Craig M]

Hello

Up to now I have been mainly interested in the 6.2 diesel. Have two of them currently licensed here in California (Suburban and 4 door dually). Have an engine swap I am interested in doing and need advise. Just bought a 95 Yukon with 6.5 and 4 speeed automatic. Has a blown engine. I have an almost brand new 6.5 engine and 4 speed automatic from a 95 3/4 ton Suburban. The engine and transmission will obviously bolt right in. The Suburban engine has all the acccessories attached. What do I have to do about the change from "C" to "J" engine. I do have the computer from the 95 Suburban. Also have the wiring harness from the 95 Suburban, but it is damaged and it would probably be better to stay with the Yukon harness if possible. Are the harnesses the same for the 1/2 ton and 3/4 ton models? California has no current inspection program for diesels so running the "J" diesel should be ok. Anyone have experience with this "change" of engines?
Any thoughts appreciated.

[patrick m.]

i thought the 6.5 eng codes were, "F", and "S" and "Y".

[triggerman]

I think the C and J refer to 6.2 engines. What you really mean is, the Yukon S will be replaced with the 2500 Sub F engine. Looks like a easy swap. Just tape off the L56 "S" conections for emissions. Good Luck.

[Craig M]

Yes I am familiar with the 6.2 names, did not have the correct name for the 6.5 differences between the half ton and three quarter ton models.

[Marty Lau]

hmmm I thought the "S" was in 1500 & light 2500's and "P" where in heavy 2500's and up? The van's have a different code as do N/A 6.5's. But, I have been wrong more than I care to admit. And not sure if 2500 Surbans have an "S" or "P"?
:confused:
But it shouldn't be too hard to swap.

[JohnC]

"P" is normally aspirated. "S" is turbocharged, under 8600lbs gvw (light duty). "F" is 8600 and up, HD.