Motor swap

Asked by Jegee15 Jul 22, 2017 at 10:44 PM about the 1998 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

Question type: Car Customization

I currently have a 3.8 v6 w/supercharge. Kind of wanting
to throw a v8 in her. What would be the best/easiest v8 to
put in?

4 Answers
19,025

Jason answered 6 years ago

don't.. it could bust the x-misson. if u can fit a northstar v-8 & x- mission. from a buick lucerne / caddy DTS only.

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4,065

Capn_Steve answered 6 years ago

Pontiac put a V8 5.3 liter ls motor in the Grand Prix in 2006 It made 303 hp. Your supercharged 3.8 makes 240 HP. Swapping to the ls engine is a lot of work and wont be cheap. you would be better off making small upgrades to the 3.8. Thanks to the turbo buick crowd. There are lots of parts available for the 3.8. And lots of companies that offer parts specifically for the supercharged GP's

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10

BuddEBudd answered 5 years ago

I have the engine n trans from my 05 grand prix gt...Can i put that into an 04-08 grand prix gtp or the trans wont fit?

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