4.7 V8 swap?

I used to be a Chrysler/Jeep light-line tech before I went back to school, we had a 4.7 grand cherokee that once or twice a year it would come in for loosing coolant without any signs (leaks or coolant in oil) come to find out 3 years old, the motor was so well machined that from the factory they forgot to install a right side head gasket and the motor had no compression loss or vacuum leaks. Only the coolant would eventually make it to the exhaust port and evaporate off. Pretty cool lil motor, i'd love to do one If I had one, who says you need aftermarket parts, cool 4 speed od trans v8 cruiser would be nice. Dependable and very drivable!