So I'm going to put 7/16" screw in studs in some 2.02 1.6 fuelie heads. Anybody ever do this themselves? I know it's better to take it to a machine shop and have it done but I was just quoted $180 for this. I'd rather buy a set of aftermarket heads.

So... does anyone have any recommendations on which studs are the easiest to install? And without the use of a machine shop?