Cometic C10284-027 Multi-Layer Steel Head Gasket Set 4.250" Bore .027" Thick

The Cometic C10284-027 is a premium multi-layer steel (MLS) head gasket set designed for high-performance and heavy-duty applications. Featuring a 4.250-inch bore diameter and .027-inch compressed thickness, this gasket pair delivers exceptional sealing performance under extreme cylinder pressures and temperatures.

Key Features:

• Multi-layer steel construction for superior strength and durability
• 4.250-inch bore diameter accommodates various engine builds
• .027-inch (27 thousandths) compressed thickness for precise compression ratio tuning
• Advanced oil and coolant sealing technology prevents leakage
• Sold as a pair for V-twin or multi-cylinder applications
• Heavy-duty design withstands high boost and compression
• Eliminates the need for retorquing after initial installation

Cometic gaskets are engineered with a proprietary coating system that enhances the gasket's ability to seal imperfections in the sealing surfaces. The MLS design uses multiple layers of stainless steel with elastomeric coatings, allowing the gasket to adapt to minor surface irregularities while maintaining reliable compression sealing. Ideal for performance street engines, race applications, and turbocharged builds where reliability is critical.