I just purchased a 240z and am looking for advice on the swap I'm planning to do. I was planning on either an ls1 or ls2 with a t56. Is there an advantage for one over the other when putting them in a Z? Also does the t56 fit or does a new bigger transmission tunnel have to be installed? Also I'm assuming it will have to probably be atleast built like stage 2 is that going to make it bigger at all? I was planning on putting a ford 9inch to back it up. I was planning on twincharging (super and turbo charge), I'm open to just supercharge or twinturbo I just don't know which I should do. My goal is 800+ hp and ft/lbs for a street and track car. I know I'll need frame strengthening and a new drive shaft along with the swap parts- mounts roll bar and wiring etc. I'm open to any suggestions really on engine transmission and upgrades to it. I just want to get into track racing as I start college but the car still be street legal.