I have a 1999 Pontiac Grand Prix gt with a
3800 series 2 v6 and I was wondering if it's
possible to do an engine swap with a 5.3l
No, your Grand Prix is FWD. You would have to convert the car to RWD to put a V8 in it.
2000 2001 lmpala it has a 5.3 front wheel drive you would have to use the the wire harness and whole sub frame for it to work.
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