Cometic C10166-027 MLS Head Gasket Bore Thickness - 4.075 027

The Cometic C10166-027 is a premium Multi-Layer Steel (MLS) head gasket designed for high-performance engine applications. This gasket features a 4.075-inch bore diameter with a compressed thickness of .027 inches (27 thousandths), providing reliable sealing under extreme cylinder pressures.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and heat resistance
• 4.075-inch bore diameter with 4.095-inch gasket bore for optimal sealing
• .027-inch compressed thickness for precise compression ratio tuning
• Heavy-duty design handles high boost and extreme combustion pressures
• Engineered for racing, turbocharged, and supercharged applications
• Exceeds OEM specifications for strength and reliability

Cometic MLS head gaskets utilize multiple layers of stainless steel with specialized coatings to create a gasket that can withstand the demanding conditions of performance engines. The precise bore sizing and thickness allow engine builders to accurately calculate and achieve target compression ratios while maintaining a secure seal between the cylinder head and engine block.