i cant remember ever running a gm or ford in a plymouth but i did put a
318 in a 75 impala once it actually fit real good it was a truck motor
and we just set it in and welded the motor stands straight to the frame
but im sure somebody has put a gm in a dodge before you might look on
wecrash or talk to someone from searcy i also seen bobby cliff run one
at batesville i dont know if he ran a gm or dodge motor in it