procomp ls3 heads?
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procomp ls3 heads?
so what do you guys think of these heads, manly valves, btr springs, retainers and keepers.. going on my next motor. Aluminum 6.0 block, 4.05 bore with wiesco 12cc dish pistons, eagle 6.125 H beam w/ arp 7/16 bolts, callies 4.0 stroke, martin/tick cam, billet 480/96/1.10