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Actually the LS9 is cast as well, not forged, i dont see any forged LS engines on gmperformanceparts.com other than maybe the LSX and Warhawks, but those wont show up in any production car anyways...really im not a fan of the LSA, i think either go for the step up of the LS3 (being the LS7) or else supercharged the LS3, but dont half-ass it, the LSA and the LS9 are both supercharged LS3s but the LSA has a smaller supercharger to make for a quieter, more refined performance car, and who buys a Z/28 for that?? haha, i say if you're gonna make it supercharged, make it the LS9, if you're not supercharging then put in the LS7 and add a few goodies to boost it around 550hp at least...which i know they can do, just look at the LS3, just a year (maybe?) after that engine was released they released another version with swapped heads and cam that put that engine up to 480 horses and now they sell it as a crate engine on gmperformanceparts.com and jegs and all points in between...so i say give us an LS7 with swapped camshaft and heads, hell they might give us 580! =D
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