LS-1 and a six speed. I was told earlier today of a guy in michigan who did this quite recently. That, a supercharger, and some tuning; supposedly the car drifts like no other. It's completely stock -- suspension, body, brakes; the LS1 fits in perfectly, with only trans and engine mounts fabbed -- everything else worked (ie, headers).
And BMW diffs don't break. Stupid people break bmw diffs because they run them out of oil or run bad oil in them.
best, whit