Head casting question
10-20-2008, 04:18 PM
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Head casting question I have some 862 casting heads on the ls1 motor that i bought and wondering the specs on them. Can someone list the specs so i can have for reference. Also are these stock ls1 heads or what did they come from?
10-20-2008, 05:36 PM
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862 heads are 5.3 LT. heads.Many of the ported 5.3 heads use 862 castings.In stock form they have a smaller(61cc)combustion chamber but also a smaller(1.89")intake valve.Same exhaust valve as LS-1(1.55")
