What is the difference between explorer 5.0s and Mustang 5.0s other than the heads/intakes. A friend of my shop teacher a bought an Explorer motor and ask him to get the heads off because they are the Ps. My crank is shot and although I have yet to see the crank of this one, the motor is supposidly low miles and there is nice cross hatching in the cylinders. I'm wondering if the rotating assembly will work in my 86 block?