I had a small miracle the other day myself. I checked my 427 the other day as it's been sitting for a while. Cylinders 4 & 8 had a fair amount of surface rust in them. In panic mode now so I quickly say a prayer a grab the ball hone, chuck it in a drill and go to work. Thankfully they cleaned up just fine with no pitting. She is now lubed better and double bagged, hoping to start building sometime later this year. Sure dodged a bullet on that one!