I had that motor in my cherokee, which was my first car, damnit that thing would ALWAYS start. Sometimes it would take like 15 seconds of cranking, but it started everytime. Strong motor too, pulled really good down low, and you really never needed to take it above like 3k rpms to do any sort of passing. I've seen some boosted 4.0's but I don't know how long they last. I'd imagine they hold up pretty well, that motor seems to be fairly stout.