Hello. I have a 68 sprint convertible and I want to take the motor and tranny out and replace them with some torque and a 4spd. I don't eant to do anything I can't undo though [future sale in mind]. I have my choice from a local guy here of a 428 or a 455, which do I go with??? I'm leaning on the 428 because she will rev a little more and still have lots of torque. What should I do??? Also have a line on a m20 4spd out of a 73 firebird with a 26 spline in and 32 out. Would this tranny work with my driveshaft from my 68 3spd or do I have to make one with a different yoke or length? Also will the bell housing from my 3spd work on this 4spd?
