Cometic C4250-066 MLS Cylinder Head Gasket Bore Honda - 85mm B20B4/B20Z2

The Cometic C4250-066 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Honda B20B4 and B20Z2 engines. This gasket features an 85mm bore diameter and 0.066-inch compressed thickness, providing a reliable seal between the cylinder head and engine block in high-performance and stock applications.

Key Features:

• Multi-Layer Steel construction for superior durability and heat resistance
• 85mm bore diameter designed for Honda B20B4 and B20Z2 engines
• 0.066-inch (1.68mm) compressed thickness for optimal compression ratio
• Embossed stainless steel layers with Viton rubber beading for maximum sealing
• Resists corrosion, wear, and extreme temperatures
• Ideal for turbocharged, supercharged, and naturally aspirated builds

Cometic's MLS gaskets feature multiple layers of stainless steel with specialized coatings that allow the gasket to adapt to cylinder head and block surface irregularities. This design provides exceptional combustion sealing while maintaining proper torque retention and eliminating the need for re-torquing. The gasket's construction resists micro-movement between layers, preventing fretting and ensuring long-term reliability in demanding applications.