So I went to replace the vc bolt today.
Valve cover off:
Broken bolt:
Getting the bolt out was kind of a pain because I had limited room to turn the wrench. Fortunately it came loose without any trouble.
Old bolt out next to new bolt:
New bolt in:
I get the valve cover all the way back on, and realize I had forgotten to put the ground back on the front right bolt before I put the nut on. I undid the nut, put the ground on, put the nut back on, got it on and tightened it one turn too far, and it broke off... FML
I'm just gonna go ahead and buy and replace the other three bolts and hopefully save myself some headache. I didn't even tighten it that tight. I guess those bolts just get brittle over time or something. Oh well. Fortunately the little gasket is kinda wedged in there good, so it should stay, and not leak any oil. I'm gonna order another one though just in case this one comes off while I'm driving or something. As annoying as it is, I am enjoying the chances I'm getting to work on the car. Plus it always feels good replacing old parts with new ones. Gives you a little more peace of mind about things breaking.