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Re: Rebuilt engine
There is a good chance that your 402 block started life as a 396 reject because core shift spoiled the chance it would clean up as a standard bore 396. If that is the case you now have .030 overbore and if it was rebored to .030 over 402 with the rebuild 20 years ago you now have a 396 bored .060 over. If you choose to have it bored to the next oversize without checking cylinder wall thickness you may be setting yourself up for a serious engine failure. Buy the crate engine and enjoy it.
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