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Old May 11th, 2016, 05:46 PM
GMJakers13 GMJakers13 is offline
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Join Date: Aug 2015
Location: Hanna, WY
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Default Re: 401 in a mid 70s crew cab

Nice. And thank you. I will be seeing it next week but does the 401 have a 6 bolt crank flange, being that it shares the same stroke as the smaller 305and 351, or is it the 8 bolt? Ive been told this engine is externally balanced. If so, I could probably make a flexplate. Just need to know what material would need to be used.
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