Only seen one Pinto motor, in my Brother's 4 cyl Pinto Wagon. He drove it up here from FL in the middle of a blizzard with a line of tea candles on the dash as a defroster! My Dad instantly traded him for his Ford Ranger pickup as he wanted him to get back alive! The car lasted another couple weeks then snapped the timing belt. Snapped the new one too. Pulled the valve cover and discovered the cam had worn flat and was jammed against the rocker. Ford in their infinite wisdom made the cam bearings decrease in size at the front, so to pull the cam one has to remove the head first. I said screw it, removed the radio and cut a panel in the firewall to remove it through the dash! When we junked it we discovered the problem with the defroster, a dead Palmetto bug was jamming the door that moves to divert air to the defroster ducts! You FL guys use Mouse Traps on those suckers? This thing was huge!