Hi all, new to this site and a pontiac enthusiast. I came across this pontiac 400 block a YS 1969. After inspecting it, I notices the second cam bearing block housing had this wear at the bottom. It is not worn all the way through and it looks like some sort of filler was used. Could this have been a factory flaw? The motor has been rebuilt and machined but I have no history because I bought it at a local auction. Is it salvageable or scrap?C:\Users\mama\Desktop\IMG_2471.jpg