Cometic C4311-120 MLS Cylinder Head Gasket Bore Honda - 87mm 120 K20/K24

The Cometic C4311-120 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Honda K-series engines including K20A2, K20A3, K20Z1, and K24A1 variants. This precision-manufactured gasket features an 87mm bore diameter and .120-inch compressed thickness, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high combustion pressures
• 87mm bore diameter optimized for Honda K20/K24 engine specifications
• .120-inch (3.05mm) compressed thickness for precise compression ratio tuning
• Advanced material technology accommodates thermal expansion and cylinder movement
• Embossed sealing beads around combustion chambers, coolant passages, and oil return holes
• Compatible with K20A2, K20A3, K20Z1, and K24A1 cylinder heads and blocks

Cometic MLS gaskets feature multiple layers of stainless steel with precision-controlled coatings that allow the gasket to adapt to sealing surface imperfections while maintaining exceptional blowout resistance. The layered design absorbs minor head and block movement during thermal cycling, making this gasket suitable for both naturally aspirated and forced induction builds. Proper surface preparation with RA finish specifications between 50-60 is recommended for optimal performance.