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03-31-2012, 09:50 PM
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454 engine bore
how much can i safely bore a 85 chevy 454 block, and what displacement will it give me
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03-31-2012, 10:24 PM
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I am not sure
but I do know you can go 60 very easy
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03-31-2012, 10:30 PM
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Quote:
 Max would be .120 but you MUST have the block sonic tested.  Bore it .090 to make it a 473ci with a stock crank.  Bore it .090 and stuff a 4.250 stroke crank in it and make a 503ci  Personally I would not go over .060 for any reason on a daily driver and anything over .060 needs the block tested. JMHO 
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