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I had this LSX block fall in my lap but the part number doesn't cross to anything I've been able to find. Is anyone here able to lend a hand trying to figure this out? Any help is greatly appreciated. Thanks! LSX block markings. Part number 18165094
Figured it out, thanks. GM performance came through, sort of. It's a early model of their LSX but they never tracked it because they did some slight revisions and went with the new design which is what's posted on their web site.