Technical Help ID Hurst style engine mounts

Picked up these engine mounts awhile back. No idea what they fit. Can anyone identify them? No markings. The 2 holes that I would imagine would bolt to front of the engine are 2-5/8" apart. Appear well made.

 

Anyone know????....

 

Found this in a old Honest Charlie's...

Sent from my QTASUN1 using The H.A.M.B. mobile app

 

I think BBC. I would like to have them. If you want to sell, PM me.

 

I don't see them in the Hurst catalog I have ,but isn't it Olds or Caddy that has the mounting holes upright like that?

 

I have a set for an Olds Rocket ('49-'62), and though they are similar, I don't think that's what they're for. I think Cadillacs are quite different.

 

Not Olds or Cadillac

 

Up for more ideas

 

not BBC. The holes are too small and too far apart.