Cometic C5446-040 Chrysler Hemi MLS Cylinder Head Gasket Bore - Gen-2 4.375 040

The Cometic C5446-040 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Chrysler Gen-2 Hemi engines. This high-performance gasket features a 4.375-inch bore diameter and .040-inch compressed thickness, providing an excellent balance of sealing capability and compression ratio adjustment.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.375-inch bore diameter optimized for Gen-2 Hemi applications
• .040-inch compressed thickness for precise compression ratio tuning
• Provides exceptional resistance to blowout and compression leaks
• Engineered to withstand extreme cylinder pressures in performance applications
• Conforms to head and block surface imperfections for reliable sealing

Cometic MLS gaskets are constructed with multiple layers of stainless steel, featuring embossed sealing beads that concentrate load around combustion chamber openings and fluid passages. This design allows the gasket to recover and maintain seal integrity even under thermal cycling and high-stress conditions. Ideal for street performance, racing, and boosted applications where OEM gaskets may fail.