I am considering swapping a 302 (out of an 88 mustang) into my 94 Explorer (4wd). The current 4.0 has 90k miles on it, and when i recently tried towing my mustang with it, realized the 4.0 just isn't going to cut it. I was just wondering if anyone can help me out here as far as how much work it is really going to be, and what kind of costs I can expect to have.