1980 Chevrolet C30 Submodel: Cheyenne; Engine: 4.1L L6; EngineVIN: D; with Compressor Mounting;. 1980 Chevrolet C30 Submodel: Cheyenne; Engine: 5.7L V8; EngineVIN: L; with Compressor Mounting;. 1980 Chevrolet C30 Submodel: Cheyenne; Engine: 5.7L V8; EngineVIN: M; with Compressor Mounting;.
