Harrison Radiator Question

[69L89396]

This is very interesting. I would not dought the date coding.

From what I can tell, the letters on the raised portion of the tanks denotes the tank size for the core size, core length and whether it is for an automatic or 4 speed application. It is hard to get the absolute correct information just by looking because you don't know if some time in the radiator's history the core has been changed.

If these are really date coded, I wonder how far ahead they made them of the car build date. I would think they would be fairly close considering how many cars were being built.