Cometic C10223-4310-040 Milwaukee-Eight Top End Gasket Kit 4.310" Bore .040" MLS

The Cometic C10223-4310-040 Top End Gasket Kit is engineered for 2017+ Harley-Davidson Milwaukee-Eight engines equipped with 124-131ci big bore kits. This comprehensive kit includes all essential gaskets, O-rings, and seals needed for a complete top end rebuild or performance upgrade.

Kit Includes:

• Two .040" thick MLS (Multi-Layer Steel) cylinder head gaskets with 4.310" bore
• Two base gaskets for cylinder mounting
• Two rocker box gaskets and two lower rocker gaskets
• Two engine case gaskets
• Two exhaust gaskets
• One intake/reed gasket
• Eight valve stem seals
• 25 assorted O-rings for complete sealing

MLS Head Gasket Technology:

• Constructed from multiple layers of stainless steel with Viton rubber coating
• Superior sealing capability for naturally aspirated and forced induction applications
• Excellent rebound characteristics and resistance to combustion pressure fluctuations
• No re-torque required after installation
• Corrosion resistant at extreme temperatures

Designed for use with aftermarket big bore cylinder kits on Milwaukee-Eight engines. All Cometic gaskets are manufactured in the USA using premium materials. For best results, use on machined surfaces with 50 RA or finer finish. Install gaskets dry as they come pre-coated with sealant.