Part number: AF49-1043 ( 71°C) & AF49-1044 (82°C)
High flow design that resists large variations of coolant pressure at high rpm. Fully opens at correct temperature consistently regardless of engine rpm.Perfect for high performance street, drag race, and oval track. Copper & brass construction - resists corrosion. Suitable for GM Holden, Chevrolet, Ford and AMC.