that's not true for your's, just for the bent version. i would recommend getting some books on turbocharging. one is by corky bell and the other is by hugh mc(somthing). do a search on ebay for turbo books and i bet you'll find them. i bet your motor will only rev to around 4000. with that in mind, a turbo from a buick 3.8 might not be far off. i don't think it really matters which cube motor you use, but use the one it the easiest to get parts for. stock pistons should work fine in low rpm's. tom