Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - will bbc427 pistons fit 454
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Old 04-29-2012, 09:43 PM
67-4-fun 67-4-fun is offline
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427 and 454's used the same block, but differnt stroke crankshafts, the 427 used a 3.76 stroke and the 454 used a 4" stroke crankshaft, so the compression height on a piston for a 427 depending on manufacture will be 1.765-1.767 and the 454 piston used a compression height of 1.645 depending on manufacture all using a 6.135 rod.. the tall deck BBC are different, sorry i dont know off hand the specs on them with rods and piston compression heights, never look at them to much...but I hope this helps ya a bit
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