1997 grand prix engine. Change
Drop the same size engine that was in there if you don't want any changes and additional cost. I too wouldn't spend a ton of money customizing a 20 year old Grand Prix.
You should be able to put a '97 thru '03 3.8L non-supercharged V6 in there without much trouble. You'll need to change the PCM and possibly the engine wiring harness. HTH. -Jim
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