Maximum safe overbore for a 292 block

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Oct 19, 2013 | 07:54 PM

69supercj

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Joined: May 2010

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From: Fair Grove, MO

Maximum safe overbore for a 292 block

I've got a 292 block that is already 50 over and may need to go a bit more. Whats the max you can safely bore on a 292? Also, the crank is .20 on the rods and .10 on the mains, whats the max on it? Thanks for any and all help.

Oct 21, 2013 | 10:27 AM

charliemccraney

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Joined: Apr 2003

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The only way to determine that absolutely is to sonic check the bores. Many times, you can use 312 pistons. Mine is .070 over right now.

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