I bought a 78 bronco w/a 9 in skyjacker lift 39.5 boggers and a 351m/400 with a c6 auto. My dad came to me last week and said a friend of his has a 460 in his garage that he inherited when a relative of his passed away, and he said I can have it for nothing. Just get it out of his way. I knew immediately that I was going to take it which brings me to my question. Do I have to change anything to do the swap, besides motor mounts? I believe that the 351m/400 is considered a BB so the tranny case should bolt up with no problem, so all I would really have to worry about is the flywheel right?!?