It's really hard to evaluate what exactly you have there. It's possible those push rod holes were modified to allow clearance for 1.65 or 1.6 rocker arms? No way to tell since you don't have the arms. It's also possible the studs were tapped for threads by hand and not in a mill or seat and guide machine. This often results with studs in all sorts of weird porcupine positions when tapped by hand. That can be a real problem. My first step with these would be to place a straight edge down the set of 8 studs and try to determine as best you can if they are installed straight in both planes. If they are straight, then proceed as B-man has suggested and install proper hex studs after cutting the stud bosses down. Then clearance the heads and use factory or adjustable guide plates and you should be OK. This could be anything from pretty basic to fairly complex depending on how the currently installed studs were done to begin with. Hope it works out for you.
|