Harrison Radiator Question
 

I have been looking for an original Harrison radiator to go on my 69 Camaro 396/375 with a manual trany and been told that I need a "ZD" coded tag, 3 core with a straight neck. I have talked to quite a few people and everyone seems to tell me something a little different as to what is stamped on the tanks. I didn't find any information in any of the books I have so I figure this is the place to get the answer. I have found a source that has original Harrison tanks but I want to make sure I get the correct one I need. I'm sure someone on this site has the knowledge of the correct answer.

Does anyone have a photo of the radiator I'm looking for?

Re: Harrison Radiator Question
 

69L89396;

No picture, but this may help:

69 Camaro (396) (exc. C.A.C., H.D. Rad., T.H. 400) . 3017837 w/o oil cooler. (Ident No. 3017837 - Code letters ZD)

So the radiator should have a metal tag with both the part number and ZD on it. It should not have oil cooler holes. If I remember it has a straight vs. curved neck and is a 3 core radiator. I believe that Harrison should be raised on the tank. It was also used on the 68-70 Nova 396, but only on the 69 Camaro.

If you interested the tag is reproduced and runs about $75. It also means that some one could put one on an incorrect radiator. Hopefully someone has a pic for you. There is a 307, 350, 6 cyl VG radiator on ebay if you want to look at it for comparison. Item 1855504595.

Good luck, Greg

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

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

Re: Harrison Radiator Question
 

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

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

Just curious, 69L89396, what color is this 7,000 mile L78?

Re: Harrison Radiator Question
 

Chevy454,
I'll let you know when I talk to him. I do know it was originaly from Tennessee.

Re: Harrison Radiator Question
 

Big 0 on the raised portion of the tank and smaller but Cap A on the recessed portion of the tank and a Big 0 on the next raised portion , then the tag blocks the rest of the tank and no more letters.

Does anyone know what the letters signify?

Re: Harrison Radiator Question
 

HawaiianCamaro,
Any luck with those BB radiators this weekend?

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

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.

Re: Harrison Radiator Question
 

For what its worth the markings on my 1969 L78 Nova (4 speed) Harrison radiator are: "O" "M"(recessed)"O" . I therefore doubt the "M" designates a date code. Looking forward to other responses as to what these codes mean!

Re: Harrison Radiator Question
 

There may be a letter or two that wasn't used.

Check out this link from the same subject over at the Team Camero website. Does anyone know about the other tag that was found?

http://home.pcmagic.net/bertfam/misc.htm

Re: Harrison Radiator Question
 

M is December for half of GM parts. What's the date of your car?

On that tag, didn't realize it was in the airflow. I think rebuild......

Re: Harrison Radiator Question
 

Kurt
Its a March 69 built car.

Martin M.

Re: Harrison Radiator Question
 

Does your "M" look like the "E" that is posted? It would be correct for a March built Car.

Re: Harrison Radiator Question
 

Stefano
It's definitely an "M"

Martin

Re: Harrison Radiator Question
 

Over at the Team Camaro site it was brought up that the application tag also has the letters of the tanks.

Does anyone have the information on all the application tags that includes the letters of the tanks to verify this?

As for the date coding, are both tanks date coded or just the fill tank?

Re: Harrison Radiator Question
 

here is a picture of some Harrisons. The top one has a tag with the tank letters in small size but different letters in big case. I notice the location of overflow tube differs as well as diameter of rad outlet.

Re: Harrison Radiator Question
 

Do you know what these rads came from?

Re: Harrison Radiator Question
 

Three are from Chevelle and bottom one Camaro but not sure of engine. You will have to only go by low mile cars to see original letters. One of them does not have the "fill level" stamped and I think it is a later model.

Re: Harrison Radiator Question
 

From what I can tell, the "OO" tank is used on the 68-69 BB Camaros & Novas with four speeds. Does anyone know what was used on the 67 BB Camaro?

Re: Harrison Radiator Question
 

Guys,
I went out and checked my 70 Nova BB 396/350 4 speed which I know has the original Harrison tanks on it and my code on the tanks was "OO" with a small F between the O's. My car was built August 69.
Ron

Re: Harrison Radiator Question
 

This is a picture of the radiator out of my Camaro.

Re: Harrison Radiator Question
 

Here is the other tank. There is a K between the 0 0

Re: Harrison Radiator Question
 

If you notice in the last picture I posted, at the bottom of the radiator tag there are numbers stamped. Any idea what they are?

Re: Harrison Radiator Question
 

ssL78
My other post should have read I checked my tank not tanks. I checked my radiator again. I found the driver's side had "IL" on it. "OFO" was on the passenger side tank. Unfortunately, I'm missing that small tag on my passenger side. Looks like the tag lists codes for both radiator tanks. I'm looking in the Ground Up catalog at a better picture of that small tag and this is my guess. The bottom number appears to be a part number for the radiator?? It looks like the last number is 9? When was your car assembled?
Ron

Re: Harrison Radiator Question
 

My car was assembled in May. If the middle letter is K that means that is not the original radiator for my car, or it was assembled late in 68. Anybody else with a 427 curved neck radiator know what the date is on thier tank is. What should be the code on the radiatir tag.

Re: Harrison Radiator Question
 

Glad to see this question is generating some interest. I posted a similar question in my "possible copo" thread asking if these smaller letters were date codes. The car is an 05E but the 4 core curved neck has an F between the O O.

Re: Harrison Radiator Question
 

Hi! I cruise thru here from time to time. I am definately interested in this topic. I have a 69 PaceCar with the original drivetrain and this radiator. My car is a 325/396 4-Speed car built with an 02B trim tag, drivetrian is ALL matching #s and seems to all be within 4 weeks on casting dates/run #s(2nd-4th week Dec/68,1st &amp; 2nd week Jan/69). My radiator Tag is a "ZD" tag. Will this help? <font color="blue"> </font color> [img]/ubbthreads/images/icons/grin.gif[/img]

Re: Harrison Radiator Question
 

OK, there ya go! After many attempts, here is the Tag pic! [img]/ubbthreads/images/icons/grin.gif[/img]

Re: Harrison Radiator Question
 

rpoZ11
Is that a "A" next to the tag in the picture? On the right side of it? Looks like its upside down.
Ron

Re: Harrison Radiator Question
 

Re: Harrison Radiator Question
 

YES!

Re: Harrison Radiator Question
 

69L78Nova
One question, do you know for certain if your radiator or tanks are the original units?
Ron

Re: Harrison Radiator Question
 

If "A" is for January, that would be a correct radiator for that car.