I think the LSX came from so many fast changes on the GM engine program over the years that most people could not keep up and it was too difficult explaining the difference between the models. You got your LS1,2,3,6,7,9,Lq4,Lq9 and all of the LSX 's, the list goes on. It sucks to tell someone that you have an Ls2 and then you have to explain the the differences between your motor and the Ls1. Has anyone looked at the GM part catalog lately, it's probably 40 engines on 1 page. My wife's daily driver is a 422cu Ls2 in a candy apple red 98 trans am vert. It is undergoing a cosmetic and minor maintenance makeover.