Gasket SBC Crate 602 / LT1

The Gasket SBC Crate 602 / LT1 from Schoenfeld is a precision-engineered exhaust header gasket designed for Small Block Chevy engines running factory 602 crate heads. Built for high-performance and competition applications, this gasket seals the critical interface between the cylinder head and exhaust manifold, preventing hot gas leakage that compromises power output and thermal management. Whether you're building a street motor, competition engine, or replacing a worn gasket on an existing platform, this component is essential for maintaining combustion chamber integrity and exhaust flow efficiency.

This gasket features a 1.500 x 1.450 inch rounded square port profile with a steel core graphite construction—a time-tested material combination that withstands repeated thermal cycling and maintains a reliable seal under sustained heat and pressure. The steel core provides structural rigidity to prevent blow-out and gasket failure, while the graphite facing accommodates surface irregularities and seals against the mating surfaces of the cylinder head and manifold. The compact 0.5-inch thickness integrates seamlessly with factory header geometries, and the rounded port design optimizes flow characteristics while ensuring consistent sealing pressure across the gasket face.

Engine builders, mechanics, and motorsports enthusiasts working with Small Block Chevy 602 crate heads will find this gasket indispensable for any rebuild or header installation. Compatibility is direct—one gasket per cylinder head port—making installation straightforward during engine assembly or manifold service. Sold individually, multiple units may be required depending on your manifold configuration. For reliable, leak-free exhaust sealing on high-rev and street applications, the Schoenfeld Gasket SBC Crate 602 / LT1 delivers the durability and precision fit that discerning builders demand.