6 bolt swap 2g head, 1g cas fitment

[gsxtreme1987]

I am in the middle of a 6bolt swap and was putting in a '91 CAS. It feels like the CAS isn't sealing right or it is really loose when i attach it to the valve cover without attaching the 2 screws on the outside.

It was held on pretty good on the 1g head without the bolts.
Is there a seal or O ring that goes from the CAS to the Cam/Rocker arm covers.

Hopefully someone will get what i am trying to say.

 

[pauleyman]

Yes there is an oring.

 

[garrettjames70]

I just did the same swap and thought the same thing, yes there is an o ring but part of the reason it felt alot tighter before is the dryed oil. I was convinced that the cas didnt fit until i put it on and tightened it down and it didnt leak.