This page covers "valley pans" which are sometimes referred to as "bathtub gaskets." It's the piece of sheet metal or stamped steel which fits below the intake manifold and seals off the lifter valley. We carry several different types, from the original stock replacement versions, to slick aftermarket fabricated sheet metal versions for use with aftermarket aluminum heads. We also carry the accessories which hold the valley pan on, such as the "holddown bars" and the bolts. It's important to note that "B" (low deck) and "RB" (tall deck) engines both use different widths of both valley pans and holddown bars. Since the "RB" engine's deck is raised, this increases the distance between the heads, making it necessary to use a different intake manifold, valley pan gasket, and holddown bars.