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Old 06-15-2003, 07:53 PM
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delima

well here it is im new here but looked around a little before registering but it sounds like you guys give pretty sound advise i have a 30 over 350 that is block prepped and a set of fresh #882's 350 police inter ceptor rods and 30 over pistons resized and all that good stuff the delima is that i just need a 307crank to build this combination my uncle told me would be a 331ci 4bolt main or i just got rid of my parts truck which had a 3782870 327 375h.p. which i kept had 1.94 1.50 #461's which has a blown head gasket i guess my question is to you guys is which combo would you build cuzz i got to sacrifice one or the other thanx much for all the comments or replys J.D.

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Old 06-15-2003, 08:02 PM
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That has to be one of the longest sentences I've ever seen.
If I understand what you're saying you have to chose between a 327 and a 331. A 331 is a 327 that's bored .030.
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Old 06-15-2003, 08:06 PM
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the 307 crank will give you 331 inches but not with the 350 pistons, you need 327 pistons as the pin height is different and you will get about 4 to 1 compression with the 350's. Go with the 350 pistons and a 350 or 305 (same thing) crank. THERE AIN"T NO SUBSTITUTE FOR CUBIC INCHES!
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Old 06-15-2003, 08:12 PM
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well i know 30 327 is a 331 but what my uncle told me to sell the 327 375horse cuss its worth money to someone building a numbers matching vehicle and the reson for the destroke is to have a 331 4 bolt main considerin that gm never made a 327 4 bolt
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