What is the stalll of the factory 12" D5 torque convertor?

1KWIKSIX

Well-Known Member
Joined
Sep 29, 2007
Just wondering what the factory stock 12" D5 stalls at in our Turbo Buicks?

I've heard people state different stalls that vary from 2000 t0 2400?

Does GM have anything published on this in their factory service manuals or anything else official?

Just wondering.

Thanks,
Dave
 
It's about 1800@0. The diesel cores GM used reportedly stalled a few hundred rpm higher but they werent common. The tag on the converter can be decoded to give the stall speed.
 
It's about 1800@0. The diesel cores GM used reportedly stalled a few hundred rpm higher but they werent common. The tag on the converter can be decoded to give the stall speed.


Thanks Bison!
I'll dig out the convertor and post the numbers stamped on it, maybe someone can help to decode it?

thx
dave
 
Stall speed will also vary on whether the owner knows how to tune...or not.
 
1KWIKSIX said:
Thanks Bison!
I'll dig out the convertor and post the numbers stamped on it, maybe someone can help to decode it?

thx
dave

Gnttype.org has the codes
 
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