Cometic C10258-030 Multi-Layer Steel Head Gasket Bore Thickness - 4.500 030

The Cometic C10258-030 is a high-performance multi-layer steel (MLS) head gasket engineered for demanding applications. This gasket features a 4.500-inch bore diameter with a compressed thickness of .030 inches, making it ideal for engines requiring precise compression control and reliable sealing under extreme conditions.

Key Features:

• Multi-layer steel construction provides superior strength and durability
• 4.500-inch bore diameter suitable for 139 cubic inch displacement applications
• .030-inch compressed thickness for optimal compression ratio tuning
• Designed to withstand high cylinder pressures and temperatures
• Excellent conformability to head and block surface imperfections
• Resistant to corrosion and chemical degradation

Cometic MLS gaskets feature multiple layers of stainless steel with embossed sealing beads that provide even load distribution across the sealing surface. This design ensures consistent clamping pressure and eliminates leak paths, making them the preferred choice for high-performance, racing, and forced induction applications where reliability is critical.