Dan, I'm not sure if you are concerned about getting the correct date as well for your '72 but the '72s seem to have all come with a 1112016 that has a 1970 date code of 0F23. Here is an old thread about it that's pretty interesting: http://v8buick.com/index.php?thread...have-an-original-1112016.146577/#post-1135868 Apparently Buick made a really big batch with the 0F23 date and it lasted a long time since the number of Stage 1s produced is relatively low. Good luck with your search.