1985-1998 Harley Davidson Big Twin Big Bore Head Gasket .040" - FKM Rubber MLS Steel

This Multi-Layer Steel (MLS) head gasket is a high-performance sealing solution specifically engineered for Big Bore applications of the 1985-1998 Evolution Big Twin engine. Constructed from premium stainless steel and enhanced with a specialized FKM (Viton) rubber coating, this gasket is designed to handle the increased cylinder pressures and thermal expansion associated with high-displacement, modified engines. The stainless steel core provides essential structural tension, while the FKM outer layer ensures a precision micro-seal against oil, heat, and combustion gases.

With a thickness of .040", this direct-fit gasket is built to maintain reliable sealing integrity and consistent deck height under the rigorous operating conditions of a modified V-Twin. It is an ideal choice for riders and builders seeking a robust, leak-proof barrier during top-end rebuilds or performance upgrades for classic Evolution-era Big Twin motorcycles.