Once again, with everyone's help, the job gets done! Heating and cooling the head did it! I would have figured that doing this would have softened the head and then stripped out with the impact driver but not so. Also under the head is a mean star lock washer that was actually sunk into the metal. I think the the head end was more "froze up" than the thread end like I originally thought and a whole lot easier to get to. Thanks again for all the help!