I'm suprised no one mentioned this, the pontiac 455 has huge mains I think 3inch if I remember right and actually does have trouble with high rev's unlike the 350 pontiac. I never knew that until my machinist told me.
Thanks Shotgun just the inspiration i need to get off my rear and get to work on mine 🙂 What frame mounts did you use to put a pontiac motor in a g-body as im looking to put a 400 pontiac in my Grand Prix
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