I tell you what I'd do. I would mig weld a nut on the end of the stud and then back it out of the head. But you do it however you feel comfortable. Good luck. That can be an issue. I'll get your stuff out tomorrow if I can and send a tracking number.
I've heard of people doing that on aluminum boat motors before. I'll look to do that first if I can. Thanks again for the part! I've read over and over about how finicky these manifold seals are.
