340 4 speed to 440 4speed conversion
IU did a 440 68 'Cuda w/ automatic. I do know with the Schumacher kit you have to cut a notch in the k-member for the oil pump/filter and use an oil pan from a C body. I've heard their headers will fit on a 4 spd. a body with a 440. Also 72/73 C body exaust manifolds are said to work.