installing exhaust/intake studs

[T77911S]

I need to put the exhaust studs and intake studs back in my heads.
should I use locktite and which one.

I was told to use the 1/8 hex head brass plugs for the emissions ports but I cant find any

[jimgreenery]

I'm certainly not an expert. I used the blue many years ago to install new studs. I recently had to remove the exhaust, and yes rusty nuts, I had three of the studs unscrew with the nuts. Better than a broken stud. This time I replaced the non barrel nuts with copper clad nuts hoping not to have the rust issue. And I used the blue locktite again. It will be interesting to hear other comments.

[fred cook]

Originally Posted by jimgreenery

I'm certainly not an expert. I used the blue many years ago to install new studs. I recently had to remove the exhaust, and yes rusty nuts, I had three of the studs unscrew with the nuts. Better than a broken stud. This time I replaced the non barrel nuts with copper clad nuts hoping not to have the rust issue. And I used the blue locktite again. It will be interesting to hear other comments.

When I rebuilt the 3.0 in my SC, I used stainless steel studs and nuts along with a light coating of anti seize cream. Now, 6 years later, they still look like new! I did use the blue locktite when I put the studs in the heads.

[mepstein]

I was told by the engine experts on this site to use regular steel, not stainless and no locktite but a high heat anti seize.

https://forums.pelicanparts.com/911-engine-rebuilding-forum/1040927-exhaust-studs.html

[mike sampsel]

Originally Posted by T77911S

I need to put the exhaust studs and intake studs back in my heads.
should I use locktite and which one.

I was told to use the 1/8 hex head brass plugs for the emissions ports but I cant find any

I got my brass at Ace hardware in the plumbing section.


For the exhaust studs into the head (for the Heat Ex), I used no loctite. I do not recall using anti-seize on the stud, but did so on the threads where the barrel nut and other nuts fasten. Thought the exhaust studs get too hot for loctite anyway.

[john walker's workshop]

No stainless on stainless. I just crank them in tight and if one happens to come out with the nut on later disassembly, no big deal, just screw it back in.