MLS Exhaust Gasket - BBC 1.920 Round Port

The MLS Exhaust Gasket – BBC 1.920 Round Port is a precision-engineered sealing component designed for big-block Chevrolet (BBC) engine builds where header-to-cylinder-head fitment demands OEM-level reliability. This gasket is essential for preventing exhaust leaks and ensuring optimal performance in high-performance and street applications.

Constructed from multi-layer steel (MLS), this gasket is designed to withstand the thermal cycling and pressure differentials inherent in both modern and classic BBC powerplants. The MLS technology stacks multiple hardened steel layers with elastomer facings, creating a superior seal that resists blow-out, even under high exhaust velocity conditions.

Ideal for BBC stroker builds, turbocharged applications, and restoration projects, this gasket ensures compatibility with both classic BBC castings and modern aluminum heads. Its design helps maintain consistent clamp load and conformity, making it a reliable choice for enthusiasts looking to enhance their engine's performance.