Here is a painful repair. Valve cover bolt hole. Previously "repaired" by someone long ago. They must have broken off the bolt and then drilled on either side of it. Only 1 of those 2 side holes went full depth. I thread locked a bolt into the angled hole and then milled it off. Then mounted the head into the CNC with the VC bolts inline to the machine. I also have the exact bolt pattern in memory. Milled the correct bolt hole into the pad. Installing a new insert into the right spot.
Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com