Aluminum 3-Row Radiator +Fan+Shroud Fit 1967-1972 Chevy C/K Series Pickup TrucksDescription: This Aluminum Radiator is designed to provide maximum cooling efficiency to prevent premature engine failure. Its light weight, and high heat transferring aluminum features a tube and fin design that, dramatically increases surface area that enables the heat to dissipate more efficiently. This Aluminum Radiator is at least 35% 45% more efficient than stock ones. Most importantly, it has a much higher capacity for coolant than stock ones,