Description
The Cometic Yamaha YFZ450 98mm Top End Gasket Kit is designed for high-performance engine rebuilds, providing superior sealing and durability. It includes all necessary gaskets, O-rings, and seals for a complete top-end rebuild, covering the cylinder base upward. The kit utilizes EST (Extreme Sealing Technology), featuring embossed stainless steel gaskets with a proprietary rubber coating for enhanced reliability. The head gaskets employ a multi-layered steel (MLS) design, promoting even torque distribution and reducing bore distortion, which improves piston ring sealing for increased power. These advanced gaskets are engineered to handle high horsepower, elevated cylinder pressures, and extreme temperatures. The design also helps dissipate heat evenly across the gasket surface, eliminating hot spots and preventing gasket failure. This kit meets and exceeds OEM specifications and includes components such as valve stem seals and exhaust gaskets. It is suitable for modern high-output 4-stroke engines, whether naturally aspirated or boosted, ensuring optimal performance and longevity.
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