I'm looking for a 90-93 mustang for a driver and saw a add for a v6 93 mustang for sale. I did not know ford made a mustang in that year with the v6. If the add is not wrong about the v6 being in the car. How hard would it be for me to but in a 5.0 or a 2.3turbo motor. (is the k-frame diffrent?