i have a 400 engine that has a cam, headers and a few other goodies.
i want to know if it will bolt into place of the tired 351w that is allredy in my bronco?
are the bell housing and the engine mounts the same?
and what mods if any will i have to do?

different bell housings. I do not know about the engine mounts on the frame.

Different engine mounts as well, migh have to relocate or find some towers off a 78-79 bronco.