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Discussion Starter · #1 ·
I have a 65 200 i6 that i'm planing on rebuilding, I plan on some more hp out of this motor, my question is that after i got the head off i found that it had already been bored .40 over and i was wondering what the max bore would be for this engine.It may not need to be bored but just incase i would like to know.
 

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We went .060 over, no problems at all. There is plenty of meat in those 6 cyl. blocks.
 

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Mine is .060 as well, kind of a suprise to find that parts box in the pile.
 
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