El Guapo
Member
So, started to look into the guts of this 1979 Caddy 425 and ran across this (see pics) when I was removing the heads. Both heads have holes punched out in the area where the pushrods go through to the valve springs. Some areas punched out in large holes. This was done to both heads. I'm thinking this was perhaps a poor mans version of added oil flow???? Anyone seen anything like this before???