This is my NOS 60hp cast aluminum oil pan that fits the NOS replacement block that I have. That's a large journal rear bearing cap in the picture. Also note the breather hole in the pan rail. Ford lists a 1937 right and left oil pan gasket for an aluminum oil pan in the November 1950 Chassis parts book. The oil pan is not listed. Maybe someone with an earlier parts book can elaborate. The Ford part number is cast into the bottom.
