Description: 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 40% more efficient than stock ones. Most importantly, it has a much higher capacity for coolant than stock ones, which means that your cooling system will be more efficient and will be more resistant to temperature surges in racing applications. 100% Brand new and never been used. Made of High Quality Full AA5052 Aluminum Construction Stronger and Higher Capacity for Coolant than Stock Units 3-Row Light-Weight Racing Design Core Size: 406 x 627.52 x 52mm (15.98" x 24.71" x 2.05") Upper inlet: 1.50" Lower outlet: 1.75" Direct Bolt-On OE Fitment or Replacement Improves Cooling by 35% to 45% Temperature Professional Installation is Highly Recommended No Instruction Included Package includes: 1X Aluminum Racing Radiator Just as pictures show Fitment: For 1963-1968 Chevy Bel-Air / Impala All Engines For 1964-1967 Chevy Chevelle/EL Camino All Engines For 1963-1968 Chevy Biscayne / Cappice All Engines For 1963-1968 Chevy Impala Many GM Cars All Engines For the year and models, please check the compatibility.