Confirm Buckshot Head for 657?

[Greensam]

Hey there everyone, I received this head with other parts and I can not find much information on it. Can anyone confirm if this is for a 657 engine? Also what it might be worth? Any information would be appreciated.

 

[mikidymac]

Sadly this is a question that @Matt Braley could answer but he has fallen off the map...

 

[Greensam]

Ok, Thanks