i got a good 440 out of a 75 new yorker and put it in our 71 charger and bought most all the parts to convert to a 4 speed
it was pointed out that i could not put a 4 speed behind a 440 that had a cast crank because of balancing
i bought a 11 inch flywheel but was told cant use it behind the cast crank 440
am i screwed here now??