What is the largest over bore you can go on a 402 - Page 2

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What is the largest over bore you can go on a 402

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08-12-2007, 11:51 PM

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What is the largest over bore you can go on a 402

I have a .060 over 1970 402 4-bolt block. It will clean up at .090 but I can only find custom made pistons if I go to this size. Has anybody bored their 396 or 402 to 4.250 and used 427 pistons?
Mark Sheppard

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