OER Parts offers a wide selection of Oil System & Parts for your 1970 Buick GS 455. OER Parts offers 1970 Buick GS 455 Bypass Valves, 1970 Buick GS 455 Dipsticks and Tubes, 1970 Buick GS 455 Filter Adapters, 1970 Buick GS 455 Oil Coolers, 1970 Buick GS 455 Oil Filters, 1970 Buick GS 455 Oil Pan Baffles, 1970 Buick GS 455 Oil Pans, 1970 Buick GS 455 Oil Pickup Tubes, 1970 Buick GS 455 Oil Pumps, and 1970 Buick GS 455 Oil Senders.