3.8 head swap

Asked by porter1956 Jan 01, 2016 at 11:32 AM about the 1997 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

Question type: General

have a 97 gtp, my question is can you swap naturally aspirated 3.8 heads to a supercharged 3.8 and would it help or hurt it. im told the supercharged has lower compression. and if it would help would it be enough for the swap?

3 Answers
18,715

munron answered 8 years ago

Changing heads is a big project. If the only reason you're doing it is to improve performance forget it. There are lots of other easier and more effective ways to gain performance. Cold air intake, supercharger pulleys and exhaust all come to mind. Visit ZZ Performance if you need ideas.

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Guru9S9CR answered 7 years ago

I HAVE 2003 grand prix super charger 3800 motor CAN I PUT THE CHARGER ON A DIFFRENT 3.8 grand prix no charger on the motor same car but the other car just plain motor i want to put the charger on the one

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20

Tommy answered 6 years ago

Will natural aspirated heads off of a 2000 Buick LeSabre 3.8 fit on a supercharged Pontiac Grand Prix 3.8

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