Gasket For 2345 2356 235

The Hooker Gasket For 2345 2356 235 (part number 10808HKR) is a steel core laminate exhaust header gasket engineered for small block Chevy engines running super competition headers. Designed for 1.340-inch square port configurations, this gasket delivers reliable sealing under high-temperature, high-RPM conditions where standard gaskets fail. The laminated steel core construction resists blowout and maintains compression across repeated heat cycles, making it essential for serious engine builders and performance enthusiasts.

The steel core laminate design provides superior material strength compared to conventional composite gaskets, preventing separation between cylinder head and manifold flange even under extreme combustion pressures. This gasket is sold as a pair, covering both driver and passenger sides of the engine. The 1.340-inch square port sizing matches modern performance header designs and ensures precise port alignment without edge exposure or metal-to-metal contact that would compromise sealing integrity. Thickness and material composition are optimized for the thermal environment of naturally aspirated and boosted small block applications.

This gasket is purpose-built for engine builders preparing vehicles for track duty, bracket racing, street performance, and high-output street engines where header leaks directly translate to horsepower loss and reliability risk. Buyers upgrading to competition headers or rebuilding engines after sustained high-RPM running depend on gaskets with proven material science rather than OEM-grade alternatives. Hooker's commitment to header and exhaust system engineering makes this gasket a trusted specification component across the performance small block Chevy community.