1 New Pontiac Part #504610 / Made by Fitzgerald Part # 5809L, Manifold Hot Spot  Gasket, is for: 

All 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1946 1947 1948 1949 1950 1951 1952 1953 1954 Pontiac 8 Cylinder.

This is the gasket that goes between the intake and exhaust manifold.