dsolomon

I have a Harrison radiator in the car in my 1971 Supreme, 350 with AC. It has a CF code on the tank. Is this the correct radiator for my car. Trying to decide whether I should recore or get an aftermarket version.

stevengerard

not sure about the exact codes, CF sounds correct (CI-4-row was correct for 70 w/AC though there are 3-rows as well), but either way you should at least hold onto the radiator, original Harrison's are getting harder to find

GAOldsman

Looks like it should be SS 3017258 for A/C (C-60) and the 4200 model

GAOldsman

Yep, my other book also shows SS is correct for '71 with 350 and A/C

dsolomon

What would the CF belong in? Maybe I can find it a good home.

GAOldsman

I saw where CE was for a '72 w/ 350 and A/C but my book didn't show CF.

dsolomon

Double checked and it is a CF. Who knows it may not even be a Cutlass radiator. I will throw it up in the shed. Someday I will figure out what it belongs in.
Thanks for all the help.

tomsw31

CF is the correct tank code for the trans line side tank on the rad for a 1971 Cutlass 350 w AC (The 2 raised letters on the actual tank.) . The tag code is SS. On the tag it will show the codes are for both sides. In this application, IA and CF tanks codes are on the SS tags. Do your tanks match the tag or is the tag missing?

Mr Shifty Sidney

If you are interested in selling the radiator I may be interested in buying for my car.

Don W

Rocketbrian

I am looking for radiator tanks for my 71 442. It is T400 without air or HD. I believe the correct tag is SZ, part number 3024632. I think the driver's side would be tank model IA. DO you know the correct tank model for the passenger side (rad cap side)? My 455 SX which has air is Tag SU, which has tanks, IA and CG. I presume the 442 w/o air would have a different tank although a CG may work? You seem to have the info on the correct tanks and any help would be appreciated. Thanks.

tomsw31

The information source that I am using are actual rad tags that I have found. I have been searching wrecking yards for years looking at these things. I have not come across a SZ tag yet. CG is likey accurate but I cannot say for certain without seeing an acutual SZ tag. The tag codes are in the 1970 and 1971 chassis manual and I do not see a SU code? Is your SX a 1970 or 1971, AC or no AC?

Rocketbrian

I got that code from the 1971 assembly manual. It indicates Code SU is correct for my 71 SX 455 with air and matches my car's rad tag. I see that in the service manual, a 455 with air should have a code EB. Perhaps there was a change up in rad models during the model year. However, Code SZ is indicated as the correct model in both the assembly and the service manuals for my 71 442 auto without air. I wish I could find the correct passenger side tank. Maybe the SX's Code CG tank would work, however I don't know what the correct tank should be at this point. Any help would be appreciated. Do you have a stash of rad tanks? Thanks.

tomsw31

I do not have a stash of tags/ tanks unfortunately, and I am more familier with the 1970 model year. There are many different tag codes and many of the tank codes are commonly used. The IA is very common on the 2 and 3 core drivers side and the IF on the 4 cores in other A body GM applications. The passenger side is different in 1971 than 1970 with the smaller diameter lower rad hose outlet. The SS (342 ratio) tag and the EB (373 ratio) are the most desirable (and difficult to find) as they are 1971 W30 applications.

Rocketbrian

I have a CA right tank, which I believe came from a 70. It has a larger bottom outlet as you indicated, and therefore won't fit the 71 hose.
The "A" is a little difficult to see, but I'm sure that's what it is. Do you have info for what model it may have come from?

I wish anyone with an original 71 442 non aired T400 could check their tag for the code for the passenger side tank so I could know what one to look for.

11971four4two

I have this one as a spare. I can't believe they are so hard to find

Rocketbrian

Rocketbrian

I can't make out the code letters on the tag. Could you let me know? I wonder if an A/C 350 takes the same tank as a non-air 455. Thanks

11971four4two

The tag is not factory. It is from the shop that recored the radiator.
My guess is it once had an SS tag.

tomsw31

Are you sure that is a "A" and not an "I"?

11971four4two

If you have one of those SS tags I would think twice about posting a picture of it. A repro vendor told me if I would take a high res picture of the one I had they would start repopping it.

Rocketbrian

I looked in the Assembly manual for 1971 and it indicates the radiator applications.

H/D (OPT Y72) ZK
A/C (OPT C60) EF
3:42 Axle No HD or A/C SS
3:73 Axle No HD or A/C EF
No HD/No A/C / 3:08/3:23 Axle SZ (My Car)

Those charts are set up to be read left to right and you pick the first rad that satisfies the highest requirement.
In the above, a 3:73 car without air gets the same rad as an aired car with axles ratios lower than 3:73.

So if any of you have 71 442s without air and 3:23 or lower (numerically) rear end with a T400 and regular cooling, I'd appreciate if you could check your rad tag, of course provided you still have the original rad in your car. This would let me know what tanks go with the SZ code rad. As I write this, I think I'm looking for a needle in the haystack. I think most of you would have ZK or EF rads, and most likely aftermarket ones. Canadians hardly ever bought air cars back then, as it was considered a waste of money and frivolous.

Shredder

It's about time someone on here knows what they're talking about ^ (just kidding). I have two 1971 "SS" rads here with the CF/IA tanks. The CF is the passenger side tank and the IA is the driver's side. The original overflow hose clip that's still on the other radiator has a "BB" code on it as well. And yes, these are correct for '71 W30 sans HD cooling and A/C but with OAI (like mine). My car also did NOT originally come with a fan shroud, Rallye-Pac (U21) but it does have the rare new-for-1971 in-glass rear defogger (C49) and AM/FM Stereo option (U58). The defogger meant you got the HD-cooling alternator but not the radiator.

redoldsman

You probably don't realize you are responding to a thread that is twelve years old. It happens to all of us.

Mr Shifty Sidney

Shredder
I am looking for one of those SS radiators if you want to sell one.

Thanks
Don W