Cometic C4238-140 MLS Cylinder Head Gasket for Honda B18A1/B18B1 81mm Bore

The Cometic C4238-140 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Honda B18A1 and B18B1 engines. This high-performance gasket features an 81mm bore diameter and 0.140-inch compressed thickness, providing excellent sealing capabilities for both stock and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 0.140-inch (3.56mm) compressed thickness for precise compression ratio tuning
• 81mm bore diameter engineered for B18A1/B18B1 engine blocks
• Accommodates thermal expansion and cylinder head movement
• Resistant to blowout and leakage under high combustion pressures
• Ideal for performance builds, turbo applications, and engine rebuilds

Cometic MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to create a micro-seal that conforms to the cylinder head and block surfaces. This design allows the gasket to recover from thermal cycling and maintain consistent sealing pressure across the entire combustion chamber, making it an excellent choice for enthusiasts building reliable Honda performance engines.