Intake manifold gaskets for Chrysler Big Block B/RB engines. Constructed from a cellulose/nitrile composite material that is less compressible for strong, long-lasting sealing and durability under heat and vibration. The material features an anti-stick coating to ease installation and removal. These gaskets are designed to address sealing challenges caused by the small port sealing surface and differing expansion rates between intake manifold and cylinder head. Gaskets can be trimmed for modified ports if necessary. Suitable for OE-replacement and performance builds alike.