How To Identify A Boss Block From The Outside?

[94blackcobra]

I am going to be looking at a car that supposedly has a Ford Racing crate engine built with the Boss block. How can I verify that it is actually a Boss block from the outside? I know to look for screw in freeze plugs but is there anything else I can look for?

 

[RangerJoe]

View attachment 146423




Its a little hard to see, but this will be enscribed on the bottom near oil pan. I believe there may also be something enscribed on the front of the block as well.

Joe

 

[94blackcobra]

Easy enough. Thanks for the info.