what ls3 style heads are these?????
#26
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12565312 EY
cross referenced them on google and came up with ls6 sodium filled exhaust valves... kinda weird how theyre actually a tad smaller than the rest of the l92 heads. my heads came with ls6 springs too.
Last edited by anheuserbusch08; 02-20-2012 at 08:14 AM.
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Any further info on these? Have you verified valve specs? I'm wondering since the small-bore L92/LSX heads use LS6 sized exh valves, and the "X" part# if you're looking at something from GMPP and not GM production. The small bore heads are still listed at 70cc, so I'm thinking they have to open up the chambers some to achieve that??
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Kinda odd the work trucks would have aluminum blocks. They told you these heads came off an aluminum block?