ole miner

My 1986 Comanche (2.8L) keeps giving me problems. I can start and drive for about 10 miles and it will start banging, like every tappit and/or lifter is coming loose on the inside. I will let the thing cool down for just a few minutes that then I can take off again. It does not do it every time, but it has me scared to drive it. It currently is a good driveway ornament.

What engines are inter-changeable in 1986 Jeep Comanche, currently have a 2.8 v-6 and I need to replace. It keep getting hot.