Ford 1 BA block

[Ronnieroadster]

I'm interested in locating a good 1BA block with the valve seats on the block casting no removable valve seats any pitted seat surface would be OK.
Considering the block for another record breaking build.
Ronnieroadster

 

[saltracer]

what is the difference between an 8BA and 1BA? is it the 1BA has no removable hardened valve seats?

 

[VeryTangled]

More reading in this recent thread here... Might not hit the question on the head.

https://www.fordbarn.com/forum/showthread.php?t=303452