Hmm good question...I do know they are geared different so it may not be a direct drop in...your better off keeping your current tranny and swapping in a LS fifth gear! Our old school b16 trannies are geared really low! I love it! Except when I'm doing 80mph and the car is just screaming at like 5000 or so. Hence the LS fifth gear! Good luck either way.
__________________
"I just drank a fifth of vodka. Dare me to drive?"
Don't take life so serious. It's not like were getting out of it alive anyway.