351c 4v valley pan gasket install.

that's a contentious topic. the assy line used 4 dabs of sealant in the corners, set the china wall end seals in place and located the gasket tray to the dowels on the heads and that was it. it worked and it was fast. Fel-Pro tray kits come with a set of very thin fiber gaskets that the assy line did not use, and nobody agrees on which side of the tray the belong on. IDR ever seeing any direction from Fel-Pro as to their concept of where the fiber gaskets belong either? it just now came to me, the fiber gaskets may be included for use with aluminum intakes? Edelbrock recommends against the use of the steel tray, likely because long term contact between their alloy products and the steel gasket will result in electrolysis corrosion, and aluminum always loses that fight. Edelbrocks products would be looked upon as inferior quality by the masses not aware of electrolysis after the intake seal fails due to the corrosion.

Are The Fiber Gaskets Intended to Isolate The Aluminum From The Steel, Preventing The Electrolysis Corrosion Process?

i'd say the best way depends upon what type of intake you have and how long you intend for it to remain undisturbed. i'll disagree with anybody that uses or says RTV is suitable. even if way too much is not used and blobbed into the ports, RTV is broken down by gas, it's just not sound engineering. i've used Edelbrock's Gasgacinch to reinstall a previously used steel tray, it seemed to me like nothing more than rubber cement at the time. now i'm not sure gas won't degrade the Gasgacinch either?

if i were to find myself using a steel turkey pan intake gasket right now at this moment, on a cast iron intake i'd use RTV for the end seals and set the pan on the heads clean and dry before dropping the manifold in place also clean and dry. for an aluminum intake i'd do the same but with the fiber gaskets secured in place on the top side of the pan. IIRC the kit comes with a small tube of Brush-Tack, that must be why it's in there? and maybe a thin coat of vaseline, grease or antiseize on the gasket mating surface of the manifold