727 High Stall Convertor ID

Hi all, I've got a couple of factory looking high stall torque convertors, that I'm trying to get some info as to what they are. One has the numbers 692 and 6097 stamped in it, with 156 692 hand written with paint stick on it. It also has 2 stickers that say high stall on it. The other one has 6124, 6651 and what appears to be 500 or 506 stamped into it. I don't know if this is enough info to identify these, but unfortunately, it's all I have. Thanks.

Awaiting answers as I am in search of one also.

692 is an 11" hi-stall 727 converter used with '78-later 360 LA. It has a single 120 gram triangular weight.

I found that description as well. These are both smaller converters, they have about an inch and a quarter from the body to the edge of the ring gear and it doesn't appear to have ever been weighted. I'm really confused now! lol

Show a pic of the engine side.

Okay, we may be getting somewhere with at least one of them. Upon checking things out, I discovered that one of them for sure had been weighted at one time and the one marked 692 may have been weighted as well. I don't know if the pics show it, but there is a mark that may be from a grinder. The unit with the surface rust is the 692, the other one has 500 or 506 stamped into it.

With the weight removed it's no longer a 692, it's more akin to the earlier 762. The main difference is the absence of a drain plug which was eliminated in '77.

i've often considered installing drain plugs in a few converters over the years.
is it practical, or will it unbalance the converter ?
if it is something that can be done, how would a guy determine the correct placement of the drain, and what would the length of the drill be limited to so to protect against damaging the internals ?