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350 Diesel-400-425-455 Oldsmobile Mondello premium Viton rubber rear main seal is the more durable material for performance/race Oldsmobile engines. Offered with rear main seal only or as a ultimate sealing kit. Ultimate sealing kit includes a 4oz. Gasgacinch can with applicator and a 3oz. tube of Permatex Ultra Black Oil Resistant Gasket Maker and oil pan gasket. Our oil pan gasket is a true oil pan gasket material, not cork like a lot of others available. The material we use is a rubber fiber oil retardant material that does not crack like cork does.
350 Diesel-400-425-455 Oldsmobile Mondello premium Viton rubber rear main seal is the more durable material for performance/race Oldsmobile engines. Offered with rear main seal only or as a ultimate sealing kit. Ultimate sealing kit includes a 4oz. Gasgacinch can with applicator and a 3oz. tube of Permatex Ultra Black Oil Resistant Gasket Maker and oil pan gasket. Our oil pan gasket is a true oil pan gasket material, not cork like a lot of others available. The material we use is a rubber fiber oil retardant material that does not crack like cork does.