I don't believe that I ever saw any engine in a Pinto aside from the standard 1.7L (English Formula Ford Race Engine or Kent motor) and the 2.3L. That's not counting the odd ones that people stuffed 351's in (Dino Don Nicholson remember him). Also the 2.3L had an odd cam arrangement in that if you wanted to change it. You first had to take the head off because the cam bearings were different sized. They were progressively smaller toward the front so you had to take it out from the rear. Does anyone know if the current production 2.5L has the same arrangement?