Don't be in a rush here. Do you have any machinist friends nearby? The last thing you want to try is an easy-out which can make things much worse. When this is cleared up, you need to examine all your head bolts. If any did not thread nicely, they could be stretched and distorted too.
sadly, I don't have any machinist friends near me, or even a machine shop within a 50 mile radius.
Indy
