How do I install new studs that exhaust manifold bolts to on 2012 Legacy?

[Subarulegacyfan]

I removed my exhaust manifold, to inspect the exhaust manifold gaskets (I have been smelling fumes in the cabin).

Of course, 4 of the studs came out since the nuts were seized on.

I bought 4 new studs at the local dealership (thankfully not "stealership" pricing for the studs).

I saw a video on Youtube, where a man installed new exhaust manifold gaskets. He replaced the studs by hand.

Is that how I should do it? Or should I put 2 nuts on the stud, opposite of each other, to try to torque the stud to the cylinder head?

What is the torque spec in ft/lbs?

Is anti-seize okay to use on the studs', including the threads that thread into the cylinder head?

 

[Ecmbuster]

Double nut lock on the stud to install = Yes
Anti-seize = Yes with copper formulation and very little on clean threads.
Use correct self locking nuts on assembly.

https://www.fastenermart.com/files/metric_tighten_torques.pdf

Generally, cylinder head studs are "snug" but mounting nuts are set to the correct to the correct torque.

 

[Subarulegacyfan]

Double nut lock on the stud to install = Yes
Anti-seize = Yes with copper formulation and very little on clean threads.
Use correct self locking nuts on assembly.

https://www.fastenermart.com/files/metric_tighten_torques.pdf

Generally, cylinder head studs are "snug" but mounting nuts are set to the correct to the correct torque.

So I can Double nut lock the stud, and use a rachet and socket to make them snug? I don't want to strip the aluminum threads that the stud thread into.

 

[Ecmbuster]

Read the service manual for the correct specifications.

Index of /Auto/Japan/Subaru/Legacy_Outback/2012/USDM Legacy FSM 2012 (BM-BR)

You're welcome.