1990 Chevrolet C2500 Engine: 4.3L V6; w/o Air Pump; w/o A.C.; Position: Main Drive;. 1990 Chevrolet C2500 Engine: 5.7L V8; w/o Air Pump; w/o A.C.; Position: Main Drive;. 1990 Chevrolet C2500 Engine: 5L V8; w/o Air Pump; w/o A.C.; Position: Main Drive;.
