Engine Swaps

[John_Dozer]

Well I've kinda run into a little problem. See here is my problem I have two Pontiacs, a 1991 Grand AM LE 2.3 Quad4 DOHC with swallowed piston rings. The other one is a 1995 Grand Prix SE 3100 V6 with internal damage Transmission.

So what my buddy and I are thinking of doing is putting the 3100 V6 into the 91 Grand AM. My question is what problems could we be facing in doing this swap?

Dozer

[Matt95GT]

For starters...
Bell housing pattern, engine mounts, engine harness, PCM, incompatible gauge clusters, possibly need a different transmission, etc. Not an easy swap.

[John_Dozer]

We figured something like those, but I found out that both cars may have the same Transmission 4speed-4T60E. So there maybe a chance that the 3100 may bolt up.

Where also thinking of just rebuilding the 2.3 Quad4, I think it would be cheaper. What you think?

Dozer

[Matt95GT]

I was assuming you have the HO Quad 4 (as shown in your profile to the left) which is only mated to the Getrag manual 5-speed. The automatics used on the pre-92 LD2 Quad 4s are all 3-speed autos... not the 4-speed 4T60E... which would make PCM control an issue here.

I'd suggest fixing the Quad 4... it would certainly be cheaper.

[John_Dozer]

I agree, so what do I do with the Grand Prix then?

Dozer

[Matt95GT]

Originally posted by John_Dozer
I agree, so what do I do with the Grand Prix then?

Dozer

Monster Garage-like project? ;)

Or just replace/rebuilt the damaged trans.

[John_Dozer]

Hmmmm, a 007 Grand Prix, now where is Q?

We'll figure out something. Say you know any good sites on the web where I can rebuild the 2.3 parts?

Dozer

[Matt95GT]

Heh. Didn't Q retire and leave things to "R"?

Aftermarket:
http://www.the-race-shop.com/
http://www.mantapart.com

Stock replacements: (make sure to verify part numbers first)
www.gmpartsdirect.com
www.paceparts.com