Guest dwhiteside64 Posted September 29, 2016 Share Posted September 29, 2016 Does anyone happen to have a photo or drawing of the factory authorized coolant overflow container that was offered by Buick for the first gen Riviera? Link to comment Share on other sites More sharing options...
RivNut Posted September 29, 2016 Share Posted September 29, 2016 Nothing was offered. Just a puke hose from the neck of the radiator. Any you can fit should work. But it won't work with the OE cap. Link to comment Share on other sites More sharing options...
petelempert Posted September 29, 2016 Share Posted September 29, 2016 There are a few aftermarket ones out there that are cylindrical and tuck in vertically beside the radiator. I came very close to putting one on my 63. For a while my 63 would spit up a little in the garage after a summer drive. I think maybe I was overfilling the radiator slightly. Anyway, it stopped and it's running cool. Regardless, check Summit or Jegs. They come in chrome or black. It makes for a nice clean addition and the black one looks little something GM might have made. PRL Link to comment Share on other sites More sharing options...
Guest dwhiteside64 Posted September 29, 2016 Share Posted September 29, 2016 (edited) Yes I realize that, but I read a thread that said there was a factory authorized container offered by Buick as an accessory at that time. My friend is entering his ultra clean '64 at Hershey and wants to at least have a correct overflow container. He's not sure if the one he has installed is an aftermarket one or not. See the below thread: Edited September 29, 2016 by dwhiteside64 (see edit history) Link to comment Share on other sites More sharing options...
Pat Curran Posted September 29, 2016 Share Posted September 29, 2016 I think the thread is wrong. I have the showroom binder that shows all accessories and no overflow container is listed. Nothing is mentioned in the shop manual as well. I have seen aftermarket ones installed and if professionally done they look good. There is a list of upgrades that the BCA allows on older cars without penalty, but most are related to safety such as a two pot master cylinder. Depending on what level your friend wants to compete at, I would do a little more research. As Ed mentions above, it won't work with the stock radiator cap. Link to comment Share on other sites More sharing options...
RivNut Posted September 29, 2016 Share Posted September 29, 2016 39 minutes ago, dwhiteside64 said: Yes I realize that, but I read a thread that said there was a factory authorized container offered by Buick as an accessory at that time. To be absolutely correct, he'd probably want to enter the car without the tank. As Tom pointed out in his post in the attached, they were offered as a retrofit after they became mandatory. To make it work, you'd need to use a modern cap and that would obviously be wrong as well. You'd want to check the judging rules about retrofits before making any decisions. I drove my '63 Riviera as a daily driver for 15 years and never had any problems with 'puking' as long as all of the cooling components were in good shape and I didn't overfill the radiator. Link to comment Share on other sites More sharing options...
Guest dwhiteside64 Posted September 29, 2016 Share Posted September 29, 2016 OK guys thanks for the information, I will relay the information to him. Link to comment Share on other sites More sharing options...
1965rivgs Posted October 3, 2016 Share Posted October 3, 2016 On 9/29/2016 at 9:23 AM, Pat Curran said: I think the thread is wrong. I have the showroom binder that shows all accessories and no overflow container is listed. Nothing is mentioned in the shop manual as well. I have seen aftermarket ones installed and if professionally done they look good. There is a list of upgrades that the BCA allows on older cars without penalty, but most are related to safety such as a two pot master cylinder. Depending on what level your friend wants to compete at, I would do a little more research. As Ed mentions above, it won't work with the stock radiator cap. Pat, re-read my reply in the original thread. The coolant overflow container which I described and is pictured was "retrofitted to earlier cars". This is to say the kit was offered to be installed in the first gen cars after their model year. In more simple terms, the kits were offered in post first gen model year accessory brochures to be fitted to earlier cars. I am quite sure of this as I have several NOS kits in their appropriate Buick boxes with the correct part numbers. Tom Link to comment Share on other sites More sharing options...
Lapham3 Posted October 4, 2016 Share Posted October 4, 2016 Yes-as usual Tom is correct. Years ago I sourced both the Buick and identical aftermarket kits and added them to my '65-67 B and C body cars. I couldn't find room on my '66 E body Riv and used a smaller one from a Mazda B2000 pickup. I don't recall what year these became a standard production item, but my '73 Pontiac had a similar design as OE. Dan Mpls. Mn. Link to comment Share on other sites More sharing options...
1965rivgs Posted October 4, 2016 Share Posted October 4, 2016 On 9/29/2016 at 9:23 AM, RivNut said: Ed, I am not aware of the judging rules re factory accessories as I dont compete but the original overflow kit came with a double gasketed radiator cap as part of the retrofit Tom Link to comment Share on other sites More sharing options...
Pat Curran Posted October 4, 2016 Share Posted October 4, 2016 Thanks for the update Tom. I learn something all the time! Link to comment Share on other sites More sharing options...
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