Hope someone out there can help me. I have decoded my engine block3732811 as a early 58,but am having trouble with the date code. I have found numbers listing it as 12767 and not to sure what that means. i see you have a page as a julian date calender,but still having problems understanding it. I presume the 127 is listed as may,but what is the 67. Any help would be apprciated.