I have had these in my stash for a very long time...
They were originally on a 283 motor that I installed in a 58 Willy's...
The driver's side manifold has a part number that starts with 374...the rest is hard to read.
They seem to be in pretty good shape...no visible cracks or broken ears...looks like 2" outlets and there is a hole for the choke tube on the pass. side manifold.
Might sell or just put in them "Pay Forward' section...
Let me know what you think...
-wilma