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Old 06-29-2004, 02:41 AM
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Quote:
Originally posted by grandprix601
right now im thinkin about putting a bigger motor in my 81 grand prix I was wonder what kind of motor will drop right in without modifications. The trans shop told me the trans is a 250 or a 350 the motor in it now is a 3.8 L v6.
My 81 GP came from the factory with a small block chevy (267) and a th350 tranny. So yup, it'll fit and it should be easy. It'll make things easier if you can take the engine mounts and maybe transmission crossmember from a wrecked G body with a sbc. With a v6 car you'll probably have to switch to V8 front springs and maybe the radiator too.
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81 Grand Prix, 355, 700r4, 8.5" 4.10
64 Oldsmobile Jetstar, all original
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