Dose anyone know the specs of these heads?
Dose anyone know the specs of these heads?
David,
2003 GMC Sierra Denali, LQ4, AWD, AWS, 4.10, Wheatley 93 tune, LT headers, GMPP CAI, BBK 80mm TB, MSD wires, E3 plugs, 160* T-stat, Flowmonster DI/DO, cutouts. Working on 4.8 heads, just purchased Comp 228R cam, 918 Springs, TI retainers, 7.4 hardend pushrods,
IIRC, the ASA engine is basically an LS1 with the ASA cam. The engines are shipped to Lingenfelter for tweaking & dyno testing, and then sealed prior to use. LPE may port the heads as part of their service, but I'm not sure. So there's nothing special about the heads - just your standard LS1 fare.
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