I couldn't leave it alone so I went back out to the shop. Took a spare stud I had and turned it down roughly .012". I say roughly because my lathe at home is a Milwaukee drill with the trigger zip tied on and a Milwaukee grinder with a flap disc. Hillbilly I know but it gave me an idea of what needed to happen before removing material from the head. I stopped at a couple unknown points and ran the stud in through the head and into the block before arriving at .012" of material removed. I was able to freely take the head on and off the block with all 10 studs in place. If I were to decide to turn the stud I'd take it to work and do it right. I'll probably open the hole a little instead though.