Anyone know the application - thermostat housing

[Snook]

I ran across this in my parts stash the other day - it's an oldie, cast iron. I seem to recall it being with the 64 Savoy hemi car that I built years ago. I've attached a few pics.

Chuck (snook)

 

[Lefty71]

Pretty much any 65?? or earlier big block, from 350 and 361 on up, afaik.

 

[Big Bad Dad]

My 64 Fury 361:

 

[Fran Blacker]

Also 66 BB, Hemi.

 

[66 Sat]

Looks identical to the one on my 318 poly too.