435 casting block

[WarWagon]

Looking at this engine I may purchase. It has an even fire distributor, iron heads with older generation rocker arms. I was told this engine is fully built with .030 overbore, performance cam.
The block is the early style '77-79 but ends in casting number 435. Im not familiar.
This is an old build from the 80's, has Holley valve covers, Offenhouser intake, Q Jet 4bbl adapted

 

[WarWagon]

Found it, I was looking in the wrong years.
This is a 64-67 225CI block, it has points distributor but looks like a even fire cap.
I need to go back and look deeper with tools.