For Chevrolet Nova Full Aluminum 2-Row Racing Radiator Constructed of High Quality T-6061 Aluminum Construction. High Performance JDM Spec. 3-Row Racing Design Light Weight Direct Bolt-On OEM Fitment or Replacement. Stronger & Higher Capacity for Coolant than Stock Units Highly Increase Cooling Performance Overall Size: 29.25 x 18.5 x 2.5 Inch. Core Size: 23 x 16.75 x 2.25 Inch Inlet/Outlet Diameter: 1.5"/ 1.675"