Thread: Gen 1 or LSX?

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I'm with Pat on these LS engines. Great platform for a hot rod. I'm in the middle of mine right now. Having the engine harness modified (versus a Painless harness) by a young fella in Southwest Missouri. The price was right and he'll do a simple tune and eliminate the VATS and anything else you might want rid of. Like Pat said....check out LS1 Tech's site. Lots of valuable information on the LS engines. So far from what I gather....looks like the bottom end should easily handle 500-550 hp without anything more than ARP rod end bolts. If you go with a F-body drop out....you'll retain the lighter aluminum block. There is links on the suggested blocks in the Hybrid Conversions section at LS1 techs site. For instance....my 01 WS6 engine retained the throttle cable instead of the drive by wire that a Corvette has. That'll save you money if staying with the fuel injection. Also....in the F-body section....there are guys boasting dyno pulls of 490 hp with nothing more than a T-Rex cam swap, LS6 intake, and long tube headers EDIT (and a high rpm stall convertor) . You really need to converse with the young fella's. They really seem to know their stuff.

I belive the only difference between a LS and an LSX is the latter isnt an in-car productions motor. Its a platform crate engine....cast iron...with the potential of huge displacements with the use of long stroke cranks. If your wanting a monster....go with the LSX block from GM Performance....think they have them priced way down right now. If 550 hp is what you'd concider a mid performer....then IMO a drop out from a F-body would fit the bill perfectly.

http://en.wikipedia.org/wiki/GM_LS_engine

BTW. Thanks Pat for the hint on the Corvette donut mounts. Those will look real nice polished up.

Dave G