Cory, these are the instructions I got from Larry. I found that the shoter stud barely catches the nut at first. Once you start to tighten things up the gasket will compress enough to get the nut to thread.
TYPE IV Valve Covers
Go to your local hardware store and purchase a small bottle of Weldwood Contact cement (small bottles have an applicator brush attached to the inner lid. Also, buy a small tube of Loctite. (Loctite comes in several strengths, medium holding power is fine)
Remove your existing valve covers, if you have stock covers, also remove the bails.
Remove the 4 nuts holding your rocker shaft to your cylinder head.
Remove the rocker arm shaft then remove the (2) outer rocker shaft mounting studs. (You can double nut the studs or, use a pair of vice grips) Insert the new rocker arm studs making sure that the longer stud is inserted into the head on the left side of the engine (see below)
(Look at the valve cover and note the stud hole to the left of the letter "P" of the word Porsche. A long stud must be inserted into the head so it protrudes through that hole.. The short stud is inserted into the head on the opposite end or, where it will protrude through the hole in the valve cover to the right of the letter "E" of the word "Porsche")
Double nut the new step studs and tighten the double nuts against each other. Install via a wrench on the outer double nut and make sure the stud has seated correctly by ensuring that the larger threads of the stud are flush with the rocker arm stands.
Re-install your rocker arms and tighten the 2 inner and the 2 outer nuts that secure the rocker to the head.
(20 ft. lbs)
Now is a good time to adjust your valves.
Apply a thin coat of contact cement on the valve cover in the gasket groove and also apply a thin coat to one side of the cork gasket. Set these aside for at least 8 to 10 minutes (longer if cold weather) to allow the glue to become tacky. Insert the gasket into the groove of the Valve Cover, glue to glue side.
If they don't stick, you didn't let them dry long enough. (Glue residue can be cleaned with Lacquer Thinner, Goof off or Brake Clean)
Clean the gasket mating surface on the cylinder head making sure that no old gasket or oil remains.
Install the Valve Cover and make sure the gasket seats around the cylinder head. Next, install the copper washer with the groove facing out, next comes the aluminum washer and finally the nut.
Using the brush in the lid of the cement bottle, dab a small amount of contact cement on the exposed stud and install the nut, tightening to around 8 to 10 ft. pounds. (Don