Shown here is our intake manifold "facing" gaskets. Made from .015" thick gasket facing material, these are sold in a set of 4, and are designed to work with the factory replacement type valley pans listed on our gaskets section. We recommend using one gasket on either side of the port area of the valley pan to aid in sealing, and to allow for the expansion and contraction of aluminum intake manifolds. These interchange with Fel-Pro # 1216. These can also be used as standard intake gaskets with aftermarket style valley pans if the .015" material is preferred.