Broken exhaust manifold bolts..

[mopower440]

I got my 6.0 today from LKQ, and as normal with these LS engines, there are 2 exhaust manifold bolts broke off in the heads. On the first one i tried drilling into it and using an EZ out and it didnt work. I drilled further and the holes is going crooked so i stopped. I have not tried the other one yet, it is broke off flush with the head also.. Whats the best way to get these out without drilling into a water jacket? Kinda hard to drill perfectly straight..

[farmtruc]

Easiest way is let the machine shop put some of that hard glue on the end and they simply get it out.
We weld a big nut to the end. Even if it's a flush break use a nut that Allows you to weld inside the nut making contact with the broken bolt.

[kewljay223]

yup. exactly what allen said. i just did that last month to mine. had 2 broken bolts causing exhast leak and DTC's. took me a day to do just one side as ive never done it before. but it worked like a charm. if you know how to weld, save some cash and do it yourself. if not, take it to the shop. but its not a hard fix. good luck