SBC Exhaust Gasket LS1

The Schoenfeld SBC Exhaust Gasket LS1 (Part No. 01780) is a steel-core graphite exhaust header gasket specifically designed for General Motors LS-series engines. This essential component seals the junction between the cylinder head and exhaust manifold, ensuring combustion chamber integrity while withstanding extreme thermal cycling and exhaust gas pressure.

Engine builders and high-performance enthusiasts trust Schoenfeld's graphite-composite construction to handle the temperature extremes inherent to LS1 operation. The steel core provides structural rigidity under clamping force, while the graphite facing creates a reliable seal against the mating surfaces of the head and manifold flange. Measuring 17.4 inches in length with a width of 2.5 inches and a thickness of 0.25 inches, this gasket is tailored for LS1 port configurations.

This gasket is ideal for engine builders performing header installation or replacement on LS1-equipped vehicles, ranging from street machines to track cars. Whether supporting OEM exhaust manifolds or aftermarket long-tube headers, the Schoenfeld 01780 effectively prevents gasket creep and exhaust bypass, which can reduce scavenging efficiency and increase underhood heat. Proper installation requires clean mating surfaces to ensure optimal performance.