Can I put my 1997 Grand Prix engine in the body of 1999 Grand Prix?

Asked by Oct 20, 2012 at 08:32 AM about the Pontiac Grand Prix

Question type: Car Customization

9 Answers

8,165

are they the same size engine? theoretically it should work., but the wiring harness and fuel will be slightly different if the engines are not the same. also a note...are they both auto or manual, transmissions?

1 out of 1 people think this is helpful.
4,255

they'll both be auto you can swap a 3.1 with another 3.1 and same with the 3.8 but it won't work swapping to a different size because the wiring is totally different and tranny's are different

They are both automatics and 3800. So it sounds like we should be ok. Any other advice on what might be different. Thank you.

8,165

not necessarily different, but worth inspecting, if it supercharged or not. and the condition of the charger.....may I ask the reason for the swap?

My daughter wrecked her 1997 Grand Prix but engine is fine. Frame in the bent in back. We found a 1999 Grand Prix that has a bad engine but body is in good shape. So thought we'd swap.

8,165

if the rear was damaged, and not the front/side, go for it., (as the transmission would then be damaged), are the engine codes the same, (to be sure the wiring is identical), it should be the same, but I recommend to confirm it. if i can help you anymore message me, (are you located around New England)?

Hmmm not sure about the engine codes. We have a friend that is helping out.

4,255

all 3.8 l engines from 97-03 will be same as eachother. engine code doesn't matter aslong as it's just the engine and you keep the original wiring harness.

1 out of 1 people think this is helpful.

Great, thank you.

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