coast Posted April 26, 2014 Share Posted April 26, 2014 Are there any sources to by a new torque converter for a 65 st 400 transmission?ThanksBob L Link to comment Share on other sites More sharing options...
Guest rusty_bucket Posted April 26, 2014 Share Posted April 26, 2014 Coast, My dad is currently replacing the torque converter in his 65 Rivi GS and he has had a very difficult time. He ordered one from online and it didn't fit, then he traded it into Obsolete Buick for what they said was the correct one. That one also does not seem to fit. The guy there said that there is no difference between the GS and non GS Rivi transmission, however I've always been told that the BS coded trans was a better built one. So to answer your question, Obsolete Buick might be a place to start. They are in Rockwall TX I think. Link to comment Share on other sites More sharing options...
RivNut Posted April 27, 2014 Share Posted April 27, 2014 Only the valve body in the BS transmission is different. It allows for firmer shifts and higher shift points. Otherwise, all 65/66 ST400 transmissions are the same. Even though the bell housing changed, the '67 torque converter is also a variable pitch converter. Besides Buick, Olds, Pontiac, and Cadillac used the same converter in '65, '66, and '67.You might also want to contact Tom Telesco in CT, or Russ Martin in CA about sourcing parts. There are also a lot of ROA guys who deal in Riviera parts and advertise in the Riview who can probably help you. Link to comment Share on other sites More sharing options...
1965rivgs Posted April 27, 2014 Share Posted April 27, 2014 Only the valve body in the BS transmission is different. It allows for firmer shifts and higher shift points. Otherwise, all 65/66 ST400 transmissions are the same. /QUOTE]The governors are also different.... but the torque converters are the same for the standard and GS transmissions. There are several companies in Chicago that specialize in converters but one that has been around forever is Dynamic. Try them and please report back to us. I`m wondering if the switch pitch converters are going obsolete? Good luck, Tom Mooney Link to comment Share on other sites More sharing options...
arnulfo de l.a. Posted April 28, 2014 Share Posted April 28, 2014 Arent they rebuildable? I cant remember where exactly but thought a seen a company ad that rebuilds them.arnulfo Link to comment Share on other sites More sharing options...
coast Posted April 28, 2014 Author Share Posted April 28, 2014 yes they are but my guy quoted me $600. a new convertor for a th400 is in the $200 range? Go figure. Link to comment Share on other sites More sharing options...
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