Would I be able to grab just about any fuel injected 302 made by ford/mercury and swap it? Is there different places for mounting and such or are they all the same engine? if not, what will fit in our 94-95 mustangs?
Externally the 302/5.0 blocks are the same. Your mounts and tranny will fit on any one you get. Some fuel injected 302s are speed density bank-to-bank injection and have a different firing order as well as a flat tappet cam; e.g. my 1992 F-150. The firing order thing might give you issues. There may also be issues with oil pan and timing cover/water pump but you can use your old ones.