Harrison Radiator Question

69L89396 · #1 09-05-2002, 03:44 AM

Thanks Greg,
That's exactly what I don't want to do, put a tag on the wrong radiator.
Alot of radiators I've seen have stamps on the tanks that seem to match the tag. I hope someone here on this site has one that can confirm this. There seems to not be very much information on this subject in any of the books I've seen.
Do the COPO tags match the tanks? There must be some pattern to the way they did this.

**Stefano** · #2 09-05-2002, 04:44 AM

There is a rasised I and O , Full and Harrison stamped from the inside out so that it is raised on the filler tank if I remember correct and the Right tank brace has an "R" for right side.
I have never seen Tag info stamped into a Camaro radiator tank.

69L89396 · #3 09-05-2002, 07:52 PM

Thanks Stefano,
Not to dought your memory, but does anyone here on this site have a '69 Camaro 396/375 manual that has the original radiator that can confirm this? I have called several sources and nobody seems to know what exactly this is supose to be. Everyone I talked to said the only way to know for sure is to find an original car and get the information off it. I have called Jerry MacNeish but have not heard back from him yet. He might be able to confirm this.

JChlupsa · #4 09-05-2002, 07:56 PM

We have a big Cruise night this weekend and I now of 2 BBC Camaros that are orginal that make it to most of them,and Ill take a look at them. If I find anything Ill take some pics and send them your way

69L89396 · #5 09-05-2002, 09:28 PM

Thanks,
If you can't get pictures, just make a note of anything on the tanks.

**Stefano** · #6 09-06-2002, 07:03 AM

I can't vouch for it being original to the car, but my L78 Manual has a correct three core Harrison "O" A "O" raised on the filler tank While the 4 core original Yenko radiator looks like "O" K "I" and they both say FILL ^ COLD and have an "R" on the Driver side tank Brace.

Of course both have "Harrison" Raised on the Filler tank.

I have seen one low milage original L78 4 speed 4.10 posi Camaro with a Curved neck COPO style 4 core radiator as well.

69L89396 · #7 09-06-2002, 02:52 PM

Stefano,
Is that "OO" or "OAO"? I don't understand the way you are using " marks as to what you are saying. Also, what is on the drivers side tank?

I talked to a friend who knows of an original untouched 7,000 mile L78 and I'm trying to get intouch with the guy.

69L89396 · #8 09-09-2002, 03:02 PM

HawaiianCamaro,
Any luck with those BB radiators this weekend?

**Stefano** · #9 09-10-2002, 04:33 AM

A list member has informed me that the letter on the recessed portion of the tank, in between the O O or O I is a letter date code and the 00 and IO are stamped on the radiator tag.

So "A" would be January and "K" would be November of the Model Run (November of 1968 for a 1969 Model Camaro).

Can anyone confirm this information. I had no idea that the tanks/radiator were date coded.

69L89396 · #10 09-10-2002, 05:10 AM

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.

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