I've got a simple question for yall.... Since the stud bosses are already flat do I need to have them machined to install screw-in studs? I'm talking about the regular screw-in studs not the replacement ones. Here is a pic to show what I'm talking about.

Thanks

 

Yes. I pretty sure even Vortec bosses are too tall. You'd run out of threads tightening the rocker before you reached zero lash. Besides better to make sure thier flat. There is a Q&A about doing that in this months Hot Rod magazine.

 

Yes they need to be machined. They are of nowhere near sufficient precision, and are too tall.

 

Thats what I figured....thanks.