Quote:
Originally Posted by SSDiv6
...and 428 racers like the 390 block for strength...
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HUH!??! To make a 390 block standard 428 bore size, you would have to bore it .080" over. I find it tough enough to get 428 blocks with thick enough cyl. walls to go .030", let alone a 390 which has thinner walls t5o start with. On my low 10 second 428 bracket car, I split 2 cylinders last year alone.