1-5/8in SBC Gasket

The SCHOENFELD 1-5/8in SBC Gasket (part number 01501) is an exhaust header and manifold gasket engineered specifically for small block Chevrolet applications. This precision-machined component features a 1.500 x 1.450 inch square port design with a steel core graphite construction, delivering the durability and heat resistance required for high-performance engine builds. Whether you're rebuilding a carburetor-fed SBC stroker or upgrading a stock manifold system, this gasket provides reliable sealing under sustained combustion pressure and thermal cycling.

Steel core graphite composition offers superior heat dissipation and maintains gasket integrity across wide temperature ranges—critical for street engines and race applications alike. The square port configuration matches OEM and many aftermarket header designs, ensuring proper bolt alignment and consistent clamp load distribution. At 0.12 lbs and compact dimensions (2.4 x 0.1 x 18.8 inches), this is a direct drop-in replacement that requires no modification to existing manifold or header installations. Each gasket is sold individually, so buyers should verify quantity needed per engine configuration.

This gasket is essential for any small block Chevy owner performing exhaust system service, header replacement, or engine rebuild work. Proper gasket selection prevents exhaust leaks that compromise performance, increase noise, and allow unburned gases to escape the combustion cycle. The SCHOENFELD 01501 is compatible with square-port SBC heads commonly found on 305, 327, 350, and 400 cubic inch engines. Serious engine builders and weekend fabricators rely on precision gasket specifications to maintain the integrity of their intake and exhaust systems.