Gasket SBC SB2

The Schoenfeld Gasket SBC SB2 is a precision exhaust header gasket engineered for small-block Chevrolet (SBC) engines running traditional cast-iron or modern aluminum headers. This component seals the critical junction between your cylinder head ports and header primary tubes, preventing exhaust leaks that rob horsepower and create unwanted noise under load. Whether you're building a street engine, a weekend bracket racer, or restoring a classic muscle car, a quality header gasket is non-negotiable for maintaining peak combustion efficiency and protecting your investment in expensive header work.

Schoenfeld's SB2 design uses multi-layer construction with metallic facing and a robust core to withstand extreme exhaust temperatures and repeated thermal cycling without blowout. The gasket accommodates the typical SBC bolt pattern and port geometry across generations of small-block architecture, from 262 through 400 cubic inches. Its compact profile—measuring 14.6 inches in width and just 0.25 inches thick—ensures proper sealing without requiring port modifications or header repositioning, making installation straightforward on both original-equipment and aftermarket headers.

SBC engine builders and experienced mechanics rely on Schoenfeld gaskets when maximum sealing reliability is required. This gasket is ideal for high-performance applications where header leaks would compromise tuning efforts or allow unburned fuel to cool the exhaust path. Always replace header gaskets during any header installation or engine rebuild; never reuse old gaskets that have been compressed and may have lost their sealing integrity. Pair this gasket with quality header bolts and a proper torque sequence for optimal, lasting results.