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-   -   1969 COPO TH400 Converter (https://www.yenko.net/forum/showthread.php?t=154069)

dmarr35 03-21-2019 04:29 PM

1969 COPO TH400 Converter
 
Does anyone know what converter came in the 1969 camaro Copo 427 stall speed and size Thank You

Flying Undertaker 03-21-2019 06:01 PM

L-88 torque convertor with the six mounting lugs for the bolts were used. Approximate stall was around 2800 rpm depending upon torque of your specific combination. 12" or 13" diameter.

1971ls6 03-21-2019 11:06 PM

I think it is a 12” converter and stall was 2,200-2,600, they were the only 6 bolt converter from gm at the time

dmarr35 03-24-2019 03:27 PM

Thank You

WILMASBOYL78 03-24-2019 08:03 PM

Torque Convertor...
 
Quote:

Originally Posted by 1971ls6 (Post 1440509)
I think it is a 12” converter and stall was 2,200-2,600, they were the only 6 bolt converter from gm at the time

The 6 lug convertor was used with all the L78, L72 and LS6 applications...and the other 427's [L88, L71, ZL1]. It was also used with the hi-perf small block applications like the 70 deuce and the LT1 Z28 and Vette.

I did some research a few years back and learned these 6 lug units were also used in some HD commercial applications and a foreign car that used the TH400.

I'm not sure what, if any, different stall speeds were selected.

Last time I checked a few parts sources there was still a few of these floating around.

-wilma

firstgenaddict 04-02-2019 03:39 PM

The 6 lug converter was used up through at least the 73 Z28... my brother's first 73 z28 with TH400 had the 6 lug converter, FWIW the auto for the Z28 was more expensive.


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