Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Pistons hit heads on 454 w 25.5cc dome
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Old 08-27-2011, 11:18 AM
1932bantam 1932bantam is offline
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good luck with those heads. i would be using a stud girdle also , I had same problem I removed a little of the heads so sparkplug would clear. with a .640 lift flat tappet no girdle broke the stud boss out of the head the casting looks very porus on the inside and these heads are around 5lbs lighter than any other al. head. Just fired mine up today with a set of steel 188's no more procomp for me . there combustion chamber is different than stock is why you hit.
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