For Datsun 240Z & 260Z Full Aluminum 2-Row Racing Radiator - Nissan S30 Base 2+2 Coupe Constructed of High Quality T-6061 Aluminum Construction. High Performance JDM Spec. 2-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: 25.25" x 18.50" x 2.75". Core Size: 23.25" x 13.75" x 2.25" Inlet/Outlet Diameter: 1.25"/ 1.25"