Thread: 402 to a 427
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01-09-2005 12:09 PM #2
SOME, 396-402 blocks will bore to 4.250. I have seen a couple that went .030" over that. It would be wise to have the cylinder walls sonic checked. The vast majority of two bolts get thin spots at .090" over stock bore





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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday