Cometic 86mm Top End Gasket Kit Fits Honda TRX400EX

The Cometic EST Top End Gasket Kit for the Honda TRX400EX/XR400 (86mm) is engineered for high-performance applications, delivering exceptional sealing under the demands of modern high-output, high-cylinder-pressure engines. This kit includes all essential components for a complete top-end rebuild, such as head, base, intake, cam chain tensioner gaskets, and cylinder O-rings. Key features include MLS (Multi-Layered Steel) head gaskets designed to ensure even torque distribution across the gasket surface, reducing bore distortion and improving piston ring seal, resulting in enhanced power and performance. The gaskets are constructed using premium materials like stainless steel with a Viton rubber coating to withstand extreme temperatures, pressures, and high-horsepower conditions. The EST (Extreme Sealing Technology) gaskets feature embossed stainless steel layers coated with a proprietary rubber material for superior sealing and durability. Cometic's design promotes efficient heat dissipation, preventing hot spots and potential gasket failures, ensuring reliable performance in demanding conditions. Trusted by leading engine builders, this kit offers a high-quality solution for maintaining and optimizing engine performance.