Mrace43
New member
New to the forum:
Recently dropped a 383 stroker, 430 HP ( at the crank ), 470 lb ft torque into our 75 Vette. The car still has the stock 4spd (I believe it's the M20). Is this tranny going to grenade on me if this car is run hard at all? The original L48 motor was only 165HP. If so any suggestions to upgrade? I would really like to keep the 4 speed. Can it be upgraded (by rebuild) or do I need to start with something else? Also was wondering if this really was a Muncie transmission. I always thought they were T-10s. Any help is much appreciated. Thank you.
Matt
1975/Blue L48 - Dad purchased new in 1975
Recently dropped a 383 stroker, 430 HP ( at the crank ), 470 lb ft torque into our 75 Vette. The car still has the stock 4spd (I believe it's the M20). Is this tranny going to grenade on me if this car is run hard at all? The original L48 motor was only 165HP. If so any suggestions to upgrade? I would really like to keep the 4 speed. Can it be upgraded (by rebuild) or do I need to start with something else? Also was wondering if this really was a Muncie transmission. I always thought they were T-10s. Any help is much appreciated. Thank you.
Matt
1975/Blue L48 - Dad purchased new in 1975