Manifold Studs

[tmsmini]

Is it advisable to use anti seize on the studs where the nuts screw on?
What about some sort of loctite on the other ends that screw into the manifold flange?

[MiniDave]

The manifold gets too hot for locktite to hold, even the red version melts at about 400*, I double nut the stud to tighten it into the manifold.

If you're going to use antisieze use the copper stuff as its higher temp rated, I just use brass nuts, however those studs are metric and I haven't seen any brass nuts in metric.....but if you can find them they won't rust/corrode to the steel studs.

Edit: a quick search shows plenty of brass nuts in metric sizes - I noticed Porsche uses copper nuts on their exhaust sytems

[tmsmini]

I found brass nuts when I installed the engine. There is some special name for the nuts used from the factory. It is almost a flange nut, but they rust/seize terribly.

Do you use a lock washer with the brass nuts?

[MiniDave]

No lock washers, just flat washers

[94touring]

Copper on my VW.