14. Once on the Westech Performance SuperFlow 902 engine dyno, we added oil to the Dailey dry-sump system, connected the loom from our Holley Dominator ECU, and installed a set of Hooker LS 1 7/8-inch ...
The Gen III LS1 engine factory-installed in '98-'02 Firebirds, '04 GTOs and the Gen IV LS2 between the fenders of the '05-'06 GTOs are excellent powerplants. Current LS2 engines are rated at 400 hp ...