NORS for Flathead like Ford  81A-6211-A size rod bearing set at STD.  Mixed set of one Ford pair and 3 pair Quality brand, all with steel backs, all made in USA : fit 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945 221 cubic inch engines with 91A-6200 or 21A-6200 rods and 1.998 standard crank journals; 1947,1948,1949,1950,1951,1952,1953 239 and 255 crankshafts may be ground to this size; or offset ground to change the stroke by 1/8" using these bearings.  These bearings are not flanged.