727 11” torque converter - Identify aftermarket

Hi,
Do you by chance recognize these 11” TC stamp numbers?
SS T37 51117
10 5 16 (date perhaps)

I can’t find in Summit, Jegs, TCI, Hughes etc..
Just in case you have bought one and know the origin, and I could find the spec..

It may be produced by a smaller shop.
I appreciate you looking.