Radiator Module Factory-Fit Polished Finish Show and Go for 69-72 Chevrolet Blazer w/Std Trans Radiator Be CoolCrossflow radiators are constructed with their tanks on the sides, while a Downflow radiator has its tanks on the top and bottom of the core. A commonly asked question is: Which is better, a Crossflow or Downflow radiator? The answer: Both will cool the same as long as the core surface of the radiator is the same in square inches. Cooling monster motors, especially when faced with common problems like tight spaces and small grille openings can be a