This is a stainless steel engine bolt kit. (except 1953 Powerglide) The kit includes bolts for distributor, side cover, valve cover, timing cover, thermostat, oil pan, intake ... For 1937 1938 1939 1940 1941 1942 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 Chevrolet Cars and Trucks