My son and I have a 93 Ford Bronco 4WD and would like to make this a project truck and add a 6" suspension lift and tires and gears. The Bronco has a 302 tired motor with 177,000 miles. If we were going to do the job right I would think that a 351 motor would be the way to go. My question "is this an easy swap?" Any sites I might go to that has detailed info? What size tires will fit under a 6" lifted Bronco? We were thinking 36" tires. Thanks!