I just got a new lt1 intake for my z28, and also a set of stainless steel bolts for the engine. So my question is, do I have to use some sealing material on the bolts,when I will do install my intake on the engine, or on any of those "big" bolts (looks some kind of plugs) what goes inside of the intake?
Thanks.

 

The "plugs" on the side of the intake are vacuum barbs (used to attach your vacuum lines - brake booster, EGR, etc); use teflon sealer to install those. No sealant necessary for the bolts that hold the intake to the heads.

 

I do use sealant on the intake bolts as most of the bolts are exposed to oil in the valve cover area. The sealant keeps oil from migrating up the threads.

 

Thanks.