Head casting question
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?
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")
