[bbdon]

Look for a larger radiator opening. The radiator for a big block car is wider, and so is the opening for it. It is about two inches larger to the driver's side. The bottom part is cut differently to allow the radiator to sit a little lower, and there are holes drilled on top to retain the rubber flap. There is also a nut welded to the support to hold one of the side brackets for the radiator. Look for it from the front, below the radiator cap.