440 m code block #'s solved

Hey guys, I wanna thank everyone for your input, there are so many incredibly smart mopar fanatics on this site. I was being questioned by a buyer about casting # on my 440 m code being incorrect or a restamp. I wanted to find documented proof somewhere. I found it in "chrysler corporation part and casting numbers book" 1962-1974 ,volume 2, page 53. The answer is exactly what you all (and myself) were thinking. Check out the pictures. And thanks for all your help16059870629042726375220301291954.jpg 16059871622006773771593211361966.jpg