1989 Chevrolet C2500 Submodel: Cheyenne; Engine: 4.3L V6 GAS; EngineCode: LB4; EngineVIN: Z; FuelSystem: FI; TBI; Electronic; Without Service Port;. 1989 Chevrolet C2500 Submodel: Cheyenne; Engine: 5.7L V8 GAS; EngineVIN: K; FuelSystem: FI; TBI; Electronic; Without Service Port;.
