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Old 03-21-2019, 04:29 PM
dmarr35 dmarr35 is offline
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Default 1969 COPO TH400 Converter

Does anyone know what converter came in the 1969 camaro Copo 427 stall speed and size Thank You
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Old 03-21-2019, 06:01 PM
Flying Undertaker Flying Undertaker is offline
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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.
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Old 03-21-2019, 11:06 PM
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1971ls6 1971ls6 is offline
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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
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Old 03-24-2019, 03:27 PM
dmarr35 dmarr35 is offline
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Thank You
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Old 03-24-2019, 08:03 PM
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Post Torque Convertor...

Quote:
Originally Posted by 1971ls6 View Post
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
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Old 04-02-2019, 03:39 PM
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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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