Technical Block ID

Can anyone identify this block?

 

Maybe more info would be helpful. markings and numbers of any sort would be a plus. Rod

 

Looks like early Chrysler hemi.

 

Post the various ID #'s cast along the edges of the valley opening and you'll get its biography very quickly on here.

 

56 or later 331 or 354

 

It is not a nailhead. I would guess from the fifties.

 

x2 .