Installing An Improved Pontiac Cooling System - Cool Winds
Currently, the '66 utilizes an OEM-style 4-core brass and copper radiator with a shroud from a GTO. Equipped with a stock-type iron water pump and 7-bladed factory clutch fan, the Pontiac doesn't "overheat," but it does routinely see over 200 degree coolant temps after being driven hard on the street or at the end of the quarter-mile.
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