Sorry, little league had double header today. Just got home.
I had to fight a couple of black widow spiders to get this out for photos.
What I have is the lower casting from a Fry/Rush conversion. It would accept either 13 5/8 or 12" cylinder and either 1/4 or 3/8" rods depending on cylinder size. Also, it has a hole through the casting for conduit if you use the 12" cylinder.
The two small holes opposite the outlet were to attach a nozzle hanger. You can see an outline from when it was mounted.
It would certainly be useable for a fry 117. The additional holes could be filled with body filler or welded.
Threads are good. It's heavy.