Originally Posted by
rjones28
Depends. Original brakes?
I know 2 guys who have put 350 LS1 engines into 240z Datsuns. They said the aluminum LS1 weighs about the same as the original iron 6 cylinder. The weak link becomes the differential. My one friend takes his to the track and besides eating tires he has broken the differential a few times. He has some beefy diff to put in there now.
I'm pretty sure a Chevy v-8 weighs more than the 4 cylinder pea-shooter that came in that MG, though.