Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 366 chevrolet big block
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Old 06-17-2012, 01:38 AM
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Both the 366 and 427 were built for low rpm high torque truck work....not performance engines. They both use very heavy 4 piston ring pistons and no one to my knowledge offers any kind of performance parts for them. You can do a search function on this website and find quite a bit of info reg. both engines......being different doesn't always equate to performance.
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