67-76 Chevy GMC Pickup Truck Automatic Aluminum Radiator Black Night Rider Series Cold Case Radiators1967 1976 Chevy GMC Truck Aluminum Performance Radiator. Night Rider Black Series For use with 4 core mounting brackets and insulators. Or you can modify 3 core version. Our Night Rider Black series radiators blend performance with original appearance to give you the best of both worlds. You will be hard pressed to find a difference between an original versus a Cold Case. These Cold Case radiators are Tig welded 100 percent aluminum and feature OEM