1984-1999 Harley Davidson Evolution Big Twin Head Gasket 3 13/16" Bore - FKM Coated MLS Gasket

This Multi-Layer Steel (MLS) head gasket is a high-performance sealing solution specifically engineered for the Big Twin Evolution engine with a 3 13/16" bore. Constructed from premium stainless steel and finished with a specialized FKM (Viton) rubber coating, this gasket is built to handle the unique thermal expansion and combustion pressures of the classic Evolution platform. The stainless steel layers provide superior structural tension, while the FKM coating ensures a precision micro-seal that is highly resistant to oil, heat, and combustion gases.

With a thickness of .030", this direct-fit gasket allows for precise management of engine quench and compression ratios. It is a critical component for riders and builders seeking to improve sealing reliability and mechanical efficiency during top-end rebuilds or performance modifications on Evolution-era Big Twin motorcycles.