Aluminum Radiator for 86-92 Mazda RX-7 RX7 FC Manual Transmission Aluminum Radiator For 86-92 2nd Gen Mazda RX-7 RX7 FC with Manual Transmission, Big Core. High Cooling Efficiency. Overall Size: 25"x21"x2.5" Core Size: 20"x19"x2.5" 1.5" Inlet & Outlet 2 Rows