Exhaust Studs

[iceminion]

So I am finally swapping my locked 14b with a 16g, and I have run into a couple problems:

a stud is broken off inside the head.

and several studs are stripped.

believe it or not, I didnt do it, the previous owner did, and I almost knew that this was going to happen when he told me he replaced the manifold "because it was cracked" it seems nobody knows how to use a torque wrench.

so, can I drill and tap the 8mm stud holes to 10mm?

what is the best way of going about this?

I could take the head off the car and bring it into a machine shop....it would be annoying as hell, but I could do it.

[Super Bleeder!!]

i'd bring it to a machine shop, i hate using the drill on delicate things.

[iceminion]

I think taking it to a machine shop would be the best idea also, the only trick now is to take the head off without having to re-do the timing, it involves making a jig, Rick Shinley told me about it a while ago, seems like a "good" idea, cant wait to try it.

[tim]

Drill down the center of the broken stud and use an eazy out. Before you start wrenching on the easy out make sure to heat the head with a torch. Even a MAPP gas torch will do. You should be able to get it out that way. IMO, taking the head off should be the last resort.

[iceminion]

Well, I got the head off, the intake valves are green and the exhaust valves are yellow, looks like this car had a bad head gasket at one point in its life. Anyways, the head is in the shop now getting helicoiled! Woot!