I need two valve cover gaskets for my '88 Firebird Formula 350 V-8 (5.7L).
As I can only buy original GM in my region, I like to know if the following GM part number is right for my engine:10046089.
Thanks!

 

That is the correct part number for all '87 and later SBCs with center bolt covers. Sounds like you've got what you need.

 

Thanks Vader,
I will order them next tuesday!

 

More questions,
Are there gaskets provided for the centerbolts?
Or just reuse the shims that are already on?(maybe liquid gasket?)
How tight do I have to mount those centerbolts?
Do I have to use liquid gasket on the new valve cover gaskets,or just mount them dry?

Thanks!

 

The rubber gaskets don't require any sealant.

The centerbolts should just have a "washer" type deal under each bolt head.



HTH