Cometic C9949-027 Top End Gasket Kit Twin Cam Bore MLS Head Gasket - 110ci 4.0 027

The Cometic C9949-027 is a high-performance top end gasket kit designed for 110 cubic inch Harley-Davidson Twin Cam engines with a 4.000-inch bore. This EST (Extreme Sealing Technology) kit includes everything needed to rebuild the top end from the cylinder base upward, featuring a .027-inch Multi-Layer Steel (MLS) head gasket and .530-inch valve guide seals.

Key Features:

• Multi-Layer Steel (MLS) head gasket with .027-inch compressed thickness for superior sealing performance
• Designed specifically for 110ci Twin Cam engines with 4.000-inch bore
• Includes cylinder head gaskets, base gaskets, valve guide seals (.530"), O-rings, and all necessary sealing components
• MLS gaskets feature multiple embossed layers of stainless steel with Viton rubber coating on outer layers
• Heat resistant to 482°F (250°C) for extreme operating conditions
• Ideal for both aluminum-to-aluminum and aluminum-to-cast iron applications
• No sealants required - gaskets provide maximum sealing performance out of the box
• Superior rebound characteristics and corrosion resistance

Cometic's EST technology combines advanced materials with precision manufacturing to deliver championship-winning sealing solutions. The MLS head gasket construction provides exceptional strength and durability while withstanding the shearing forces created by thermal expansion. Perfect for high-performance builds and engine rebuilds requiring reliable top end sealing.