2qwik2c wrote:

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In 1968 they started using that style of tag, CZ is the code for that specific radiator to be used which the build sheet would have shown. There were many different codes for different style radiators.

UC is the top tank code,  stamped into the top tank

BT is the bottom tank code, stamped into the bottom tank.

E is probably the date code of May.

Do you have a picture of the radiator in the car??  

Also there is a part # lightly stamped on the very bottom of the tag on the flat part.

68 Grande wrote:

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Here is mine off the 68 Grande, or at least I believe it is off this car. I do not have a clue as to what these letters and numbers mean so hopefully someone can chime in as I was going to look into this prior but haven't had the time until now.

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No I don't have a pic with the rad in the car.  I cheered up the engine last fall and stuck a 2 row Champion aluminum in the Grande for $200 US.  The Harrison rad could use a re-core so I just packed it up and it is in the garage for now until I have some spare cash for a re-core.  I am going to look at the numbers on the top tank and the bottom tank.  Once I get it re-cored, I am going to put the Harrison rad back in.  For the money, the Champion has posed no problems at all and seems to be an excellent rad and an excellent alternative to re-coring when the funds were a bit tight.  But, the Champion is not exactly aesthetically pleasing.

I have the tag in some metal rescue at the moment so hopefully the stamped numbers will appear once the paint is removed.