OER Parts offers a wide selection of Oil System & Parts for your 1978 Chevrolet C30. OER Parts offers 1978 Chevrolet C30 Bypass Valves, 1978 Chevrolet C30 Dipsticks and Tubes, 1978 Chevrolet C30 Filter Adapters, 1978 Chevrolet C30 Oil Coolers, 1978 Chevrolet C30 Oil Filters, 1978 Chevrolet C30 Oil Pan Baffles, 1978 Chevrolet C30 Oil Pans, 1978 Chevrolet C30 Oil Pickup Tubes, 1978 Chevrolet C30 Oil Pumps, and 1978 Chevrolet C30 Oil Senders.