870 broken exhaust manifold bolt

[Andre_The_Giant]

I agree with Rawze, 780 is way too much money... But i do wish i used a jig when i had to Helicoil one of my holes.... It did not go in perfectly straight =( luckily it seems to still be holding for now (60,000miles). Though the though of ruining my head due to not making a jig for that makes me feel stupid..

My other advise is - Look At The over all condition of the manifold!!! if its rusted to hell maybe its time for a new one. I had brand new bolts brake me a few times, I lost threads in the head because of the stress/tension of just that one bolt holding things together. I followed all of the torque procedures, new bolt, and reaming recommendations. I found that the surface area where the spacers meet the manifold were just beyond repair for mine