Port Style: Oval Gasket Material: Composite Thickness (in): 0.120 Quantity: Sold individually. Notes: Designed for use with 14.5 degree Brodix PB 2005 cylinder heads. Brodix Cylinder Heads intake manifold gaskets are made of a cellulose/nitrile material that is less compressible, for excellent sealing and durability. This material has an anti-stick coating plus a silicone bead around each intake port, except where noted, for a tight, leakproof seal. These gaskets are the choice of champions and the perfect solution for intake-sealing problems associated with the small sealing areas between ports and the different expansion rates of intake manifolds and cylinder heads.