just had to mess with it
I had the stock bolt break while the motor was running on the end of the shaft. Found out cause the motor started to idle rough but seem to smooth out after 3,000 rpms. Thought maybe the intake was leaking but compression was way down on the 7 cylinder. So I go to pull the head and taking the rocker shaft out I notice the end bent up and the bolt head gone.
In even thou the brake booster M/C was a bit in the way I was able to drill a small hole in the broken bolt. Took it out with more drills until I was going to damage the threads if I went any bigger. Took a propane touch to heat it and spray penetrating oil all over it. Got my easy out and try to turn it, nope. Well I was pissed the head had to come off so I thought if a machine shop is going to have to remove it, they might as well remove a broken easyout, lol
So I get a socket to fit it and holding it straight and steady I start pulling my socket wench, harder and harder it was going to turn or break I said....the bolt turn :cheers:
I put studs back in, screw those bolts. Hughes had them $85 like and $50 more for one rocker shaft but its been a year and all is good.
Good luck, the bolt wasn't too hard to drill, they do make backward drills and those are the ones to get cause sometimes as you are drilling the bolt will move..the drill does heat the bolt while drilling. Start with the penetrating oil tonight, let it sit overnight and spray more oil tomorrow.