Discussion in 'Parts wanted' started by Weisguy184, May 19, 2018.
has the copper plugs.
Jim, my understanding is SJ would be for the automatic transmission & later '70 4-sp. Cars, but that the early '70 cars 4-sp. Cars got a different pass. side tank w/o the cooler and I believe had an "SS" tag. Not sure when the switchover happed but I believe it was pretty early - Maybe in October or November.
Both of the SS radiators that I had came with the plugs.
Could be. Both 70 4 speeds we have owned did not fall in that time window. I have heard someone say that some early 4 speed cars had radiators without the trans cooler hook ups. If true, maybe this caused a different radiator tag to be used during those early production months.
I have a spare radiator with the tag and one on a car. I will look.
I think that is correct. The later cars got the plugs. When the change was made,not sure. I’ve had a few September/69 cars,and they had plugs. It could have been a matter of when they were used up,which plant,etc.
They probably figured it was easier to have one less radiator to choose from,during assembly. The plugs would have been fairly simple to install.
Not Buick,but here is the original from my 71 W30 4-spd 3:73,with HD-cooling,4-row radiator.
If I remember correctly,the 71-72 plugs were a different size,compared to 70-older.
Early 70 GS Fremont car no provisions.
Flynbuick,Thanks for checking your radiators. Would your spare radiator be available and if so can you post pics?
Regarding transmission cooling line plugs installed in the radiators,
I think you guys may have this a bit backwards, the 68 thru 72 Assembly Manuals show that the plugs "were part of the radiator assembly" and were to be removed prior to installing the transmission cooling lines in the radiators at assembly.
This means all the radiators were sent to the assembly lines with the plugs installed. The manuals also show that the auto transmissions had plugs in them that were removed before assembly. This makes sense because it would stop any foreign particles from getting into the units before assembly.
68 Assembly Manual page 7-7.1
69 Assembly Manual page 7-12.1
70 Assembly Manual page 7-11.1
71 Assembly Manual page 7-8.1
72 Assembly Manual page 7-6.1
This may be your best option if the search turns up empty.
Brian has tried the part out and attests to its quality. That would be enough for me as I highly doubt I'd way overpay to have an original recored.
Something to think about.
Just saw this. No it is my spare so it is not for sale. SJ tags show the combination of CF and IA tanks.
I just had an SJ built for $850.00 It is for an automatic car it has the cooler. The tanks are correct .
My 70 Stage 1 4 speed came with an automatic radiator (SJ with CF/IA tanks) as noted on the POBF. March build. By that time, they were sticking automatic rads in the 4 speed cars
SJ isn’t an auto rad .
They were factory in non Air 4-speeds . Air 350 cars . Ect Many applications . We’ve tracked these for years with build sheets early & late builds .
The Air 4-speeds got the CD tank.
Edit : All the Rad threads in here need a clear sticky .
Aaah, I was under the impression that they ran out of the trans cooler delete rads and used these in their place
My GSX came with an SJ. Stage 1, Automatic, No A/C. I believe the SJ radiator was considered HD cooling in 350 A/C equipped cars, and HD cooling in non-air conditioned 455 cars. Air conditioned 455 cars got a different radiator. I seem to recall SS code, but that is open to correction.
The automatic and 4 speed cars with A/C were equipped with a "SW" radiator, which has XS / IA tanks.
Thank you for that correction James. It has been so long since I have owned an air conditioned GS, my memory needs refreshed occasionally.