Cometic Hi-Performance 4-Stroke Top End Gasket Kit

Ensure peak engine performance and reliability with the Cometic Hi-Performance 4-Stroke Top End Gasket Kit. This comprehensive kit provides all the essential gaskets and O-rings needed for a complete top-end rebuild or refresh, designed specifically for demanding 4-stroke motorcycle engines.

Description

Engineered for today's highest-output 4-stroke naturally aspirated and boosted machines, this Cometic top end gasket kit is a crucial upgrade for any enthusiast or professional. It features Multi-Layer Steel (MLS) head gaskets, meticulously designed to promote an even torque load across the sealing surface. This innovative approach significantly reduces bore distortion, leading to a superior piston ring seal and ultimately, more power from your engine. The MLS head gaskets are constructed with embossed outer layers coated in a durable Viton rubber, ensuring exceptional sealing integrity even under the high horsepower and extreme cylinder pressures found in performance engines. The kit also utilizes Cometic's Extreme Sealing Technology (EST), incorporating embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber material. This advanced gasket material is adept at drawing heat away from the combustion ring, dissipating it evenly across the gasket surface to prevent hot spots and safeguard against premature gasket failure. With a bore size of 82.50 mm (3.248") and a thickness of 0.41 mm (0.016"), this kit provides a precise fit and reliable seal, all proudly Made in the USA.

Features & Highlights

• Comprehensive Top End Overhaul: Includes all correct base, head gaskets, cylinder O-rings, and other specific seals required for a complete top end removal and reinstallation, ensuring a leak-free assembly.
• Enhanced Power Output: Multi-Layer Steel (MLS) head gaskets provide an even torque load, reducing bore distortion for improved piston ring seal and increased horsepower.
• Extreme Durability & Sealing: Specifically designed for high-output 4-stroke engines, featuring MLS construction with embossed outer layers coated in Viton rubber for superior performance under high horsepower and cylinder pressures.
• Advanced Heat Management: Proprietary head gasket material efficiently dissipates heat away from the combustion ring, preventing hot spots and extending gasket life.
• Extreme Sealing Technology (EST): Utilizes embossed stainless steel head, base, and rocker gaskets with a specialized rubber coating for optimal sealing performance.
• Precision Engineered: Crafted with precise specifications, including a 82.50 mm (3.248") bore size and 0.41 mm (0.016") thickness, for a perfect fit and reliable seal.
• American Made Quality: Manufactured in the USA, ensuring high standards of quality and craftsmanship.

Technical Specifications

• Type: Top End
• Model: Hi-Performance
• Units: Kit
• Material: MLS (Multi-layer Steel)
• Bore Size: 82.50 mm (3.248")
• Thickness: 0.41 mm (0.016")
• Engine Type: 4-Stroke
• Vendor Part Number: C3617

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