".....the military blocks do not have a place for a fuel pump so you must use an electric fuel pump."
To clarify this, military blocks do have a "place" for a mechanical fuel pump. There are just no holes there. Using a fuel pump gasket for a template, many people have put the holes in their engines.
For a very detailed list of what needs to be done to a military 302, see
http://www.oldgmctrucks.comTo answer your original question, your bellhousing will fit the 302 block. You'll need a GMC flywheel. Yes it is worth the bother.