Engine Casting Numbers
Still trying to figure out the engine block numbers - a lot of references out there and just trying to make sure I get the right information. So far this is what I have To summarize the known casting numbers for Cylinder Heads are: # 327773 AUGUST 1921 TO NOVEMBER 1924 [U.S.] # 41522 1921 TO 1922 [Canadian] then # 327773 # 344128 DECEMBER 1924 TO MARCH 1926 # 345453 MARCH 1926 TO JUNE 1927 # 346886 JUNE 7TH TO NOVEMBER 1927 # 348540 DECEMBER 1927 TO OCTOBER 1928 AND THEN FOR FURTHER CASTINGS IN LATER YEARS: # 348540 [e.g. 1931 cast for the Parts Department] CHEVROLET CASTING NUMBERS FOR IDENTIFYING THE YEAR AND APPLICATION, CYLINDER HEADS AND BLOCKS CYLINDER HEADS 1917,18, 19 338048 D V-8 1922 381099 FB THREE-PORT 1916-21 333776 1922-27 345453 Single Port1 ½" Valves 1927 346886 Single Port AA, LM. 1 21/32" Valves 1928 348540 Two Port 1929 835503 All 1930-31 836273