Heater Core, 1967-1968 Camaro L6/Small Block V8 without AC, 1968 Nova L6/Small Block V8 without AC, Brass Tank/Copper Core, 9-1/2" x 6-1/2" x 2-1/2", 5/8" Inlet, 3/4" Outlet|OER Heater Core 1967-1968 Camaro/Firebird & 1968 Nova L6 Small Block V8 without AC.