Cometic Top End Gasket Kit for 4-Stroke Engines

Ensure peak engine performance and reliability with the Cometic 4-stroke top end gasket kit. This high-performance kit provides all the essential gaskets and O-rings required for a complete top-end rebuild or refresh, engineered for demanding motorcycle applications.

Description

The Cometic Hi-Performance Top End Gasket Kit, specifically designed for 4-stroke engines with an 84.00 mm (3.307") bore, is engineered to meet the rigorous demands of modern, high-output naturally aspirated and boosted machines. At its core, this kit features advanced MLS head gaskets (Multi-Layer Steel) which are critical for optimal engine sealing. These precision-engineered gaskets promote an even torque load across the sealing surface, significantly reducing bore distortion. This leads to a superior piston ring seal, directly translating into more power and enhanced engine efficiency.

The outer layers of these MLS head gaskets are embossed and coated with a durable Viton rubber material, providing exceptional heat resistance and sealing integrity under extreme conditions. Furthermore, the kit incorporates Cometic's proprietary EST (Extreme Sealing Technology) with embossed stainless steel head, base, and rocker gaskets. This innovative design ensures heat is effectively drawn away from the combustion ring and dissipated evenly across the gasket surface, preventing hot spots and premature gasket failure. Crafted for durability and precision, this motorcycle engine rebuild component guarantees a reliable and long-lasting seal, making it an essential choice for any high-performance 84mm bore gasket application. Proudly Made in the USA, Cometic delivers uncompromising quality for your engine's critical sealing needs.

Features & Highlights

• Complete Top-End Sealing Solution: This comprehensive kit includes all necessary base, head gaskets, and cylinder O-rings, plus other specific seals required for a thorough top-end removal and reinstallation (R&R).
• Advanced Multi-Layer Steel (MLS) Head Gaskets: Engineered for 4-stroke high-output engines, these gaskets ensure even torque distribution, minimize bore distortion, and enhance piston ring seal for improved power delivery and efficiency.
• Viton Rubber Coated Outer Layers: The MLS head gaskets feature embossed outer layers coated with Viton rubber, providing superior resistance to heat and chemicals, crucial for high-horsepower, high-cylinder-pressure environments.
• Extreme Sealing Technology (EST): Utilizes embossed stainless steel head, base, and rocker gaskets combined with a proprietary rubber material for exceptional sealing capabilities and long-term durability.
• Optimized Heat Dissipation: The specialized gasket material actively draws heat away from the combustion ring, distributing it evenly to prevent dangerous hot spots and safeguard against gasket failure, extending engine life.
• Precision Fit for 84.00 mm Bore: Specifically designed for a 84.00 mm (3.307") bore, ensuring a perfect fit and reliable seal for your 4-stroke engine's critical sealing needs.
• Proudly Made in the USA: Guarantees high-quality manufacturing and materials for dependable, race-proven performance.

Technical Specifications

• Type: Top End Gasket Kit
• Model: Hi-Performance
• Engine Type: 4-Stroke
• Material: MLS (Multi-layer Steel)
• Bore Size: 84.00 mm (3.307")
• Thickness: 0.69 mm (0.027")
• Units: Kit
• Vendor Part Number: C7096-EST

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