Cometic C3690 High-Performance ATV Top-End Gasket Kit - 80mm Bore

The Cometic C3690 is a premium top-end gasket kit engineered for 80mm bore ATV engines, delivering race-proven sealing technology for high-performance applications. This complete kit includes all necessary gaskets for top-end rebuilds, ensuring reliable compression and consistent performance under extreme conditions.

Key Features:

• Precision-engineered for 80mm bore ATV applications
• Advanced multi-layer steel (MLS) construction with stainless steel core
• Proprietary silicone coating applied at .0001" thickness on both sides for superior sealing
• Graphite composite materials resist fuels, coolants, and oils
• Complete top-end kit includes head gasket, base gasket, and all essential O-rings and seals
• Designed to withstand high compression ratios and thermal cycling
• Professional-grade quality used by racing teams and performance builders

Cometic gaskets utilize spring steel technology that allows the gasket to adapt to minor surface imperfections while maintaining optimal cylinder seal. The specialized coating ensures leak-free performance across a wide temperature range, making this kit ideal for both stock rebuilds and high-performance builds.