i am finsihing up my 5.3 head install and when i was installign the passenger side header i cross treaded the back header bolt and the 2 middle bolts that are next to each other, at this point im really pissed off and dnt knw what to do from here any advice would be helpful thanks

 

Helicoil

 

Remove head, properly tap the holes, and Helicoil or other method of restoring threads. Helicoil with epoxy to keep it in place is pretty good, but there are other (more expensive) full plug style inserts as well.

Resist the urge to try to fix it in the car, you're liable to break a hardened tap off in the hole that way.

 

how much do you think a place would charge to do this

 

About $100 +/-