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Discussion Starter #1
How far can I have my 351w block bored over and be on the safe side? Can I go .060 over and be ok?
 

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Discussion Starter #3
I am not even positive about the year of the block, I think it came out of an early 70's truck...
 

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i had a 351 block that was bored .060 and when i had it sonic tested it came back fine. the walls were still plenty thick. i think my block was circa 1970. anyway i would bore it as little as you have to, like .030 would be ideal.
 

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Discussion Starter #5
It is already .030 over, I will have to have it bored more because of rust in the cylinder walls... I dont want to have it honed and have to buy custom pistons as they are about $800 a set..
 
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