51_Buick Posted August 6, 2017 Share Posted August 6, 2017 my buick has this stamped on the side of the engine. could you decode this for me please. thanks "b400b534" Link to comment Share on other sites More sharing options...
1939_Buick Posted August 7, 2017 Share Posted August 7, 2017 (edited) The b's are 6's Look here https://www.teambuick.com/reference/ident_engine_til_52.php 64006534 1951 is my guesstimate Last digit 4 = 40 series Edited August 7, 2017 by 1939_Buick (see edit history) Link to comment Share on other sites More sharing options...
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