Cometic C9949-040-010 HD Top End Gasket Kit Bore Head Gasket - 110ci 4 040

The Cometic C9949-040-010 is a high-performance top end gasket kit designed for Harley-Davidson 110 cubic inch engines with a 4-inch bore. This precision-engineered kit includes a .040-inch thick Multi-Layer Steel (MLS) head gasket paired with a .010-inch base gasket for optimal sealing and compression control.

Key Features:

• 4.000-inch bore diameter for 110ci big bore applications
• .040-inch MLS head gasket construction for superior sealing under extreme conditions
• .010-inch base gasket included for complete top end rebuild
• Multi-Layer Steel technology provides exceptional durability and heat resistance
• Designed to withstand high compression and high-performance builds
• Precision-cut gaskets ensure consistent sealing surface contact
• Ideal for engine rebuilds, big bore conversions, and performance upgrades

Cometic gaskets are manufactured using advanced materials and CNC cutting technology to deliver race-proven reliability. The MLS head gasket design features multiple layers of stainless steel with an elastomeric coating that micro-seals imperfections in the sealing surfaces, making it the preferred choice for builders who demand maximum performance and durability.