The Ford 8N serial number is located on the left hand side of the engine block and has a prefix of 8N (example 8N141221).

1947 ………. 1 – 37907
1948 ………. 37908 - 141369
1949 ………. 141370 – 245636
1950 ………. 245637 – 363592
1951 ………. 363593 -442034
1952 ………. 442035 -524076