Head casting question

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Oct 20, 2008 | 04:18 PM

COJO_24

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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?

Oct 20, 2008 | 05:03 PM

Shawn MacAnanny

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i believe they are 97-98 heads. Do a search i know i have two threads on here about head casting numbers, years, engines, and flow numbers.

Oct 20, 2008 | 05:36 PM

oldguy99Z

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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")