I say same in early 70's tried 2 put a 340 in a 65 cuda . a holy mess. may be I do know that was first year 4 big block in a body as I mean a factory back . I would b li n 2 if I said if u have both cars I have not had that chance measure centr 2 center on both. then u will know or we will know go 4 it. if same get a 67 K frame put. O a big O ck steering gear box bolt on match iiiiii think they may interchange o again if u have power steering keep mopars system uses less power than any other. hay ley me we both learn more about mopars . b good!