ws-6 was a ***** am package, the camaro equivalant was the ss.
the ls1 came out in 98 in camaros, and i think 97 in vettes. the ls2 is whats in the new vette and gto. the ls6 is what was in the 01+ z06's and the ls7 is what goes in the 06 z06's. all very nice motors, all probably out of your price range besides the ls1.