GMC truck model T20 and T21 gasket set

Engine gasket set for 1-1/2 ton GMC T20 and T21 trucks. Uses same engine as the 1925-28 Buick Standard 6 passenger cars.
Engine gasket set for 1-1/2 ton GMC T20 and T21 trucks. Uses same engine as the 1925-28 Buick Standard 6 passenger cars.
Engine gasket set for the 1925-28 Buick Standard six.
Engine gasket set for the 1926-32 Pontiac split head six cylinder engine. We need know your year as 1932 takes different head gaskets. This Pontiac engine was also used in GMC trucks