1973 Chevrolet K10 Pickup Engine: 5.7L V8; Position: Fan and Alternator;. 1973 Chevrolet K10 Pickup Engine: 5L V8; Position: Fan and Alternator;. 1974 Chevrolet K10 Pickup Engine: 5.7L V8 GAS;EngineVIN: V; w/o Air Pump; Position: Fan and Alternator;.