For Chevrolet Corvette Full Aluminum 3-Row Racing Radiator - C4 5.7L V8 L98/LT1 ZR1 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: 27.5 x 18.00 x 2.50 Inch. Core Size: 23.50 x 18.00 x 2.13 Inch Inlet/Outlet Diameter: 1.50"/ 1.625"