Cometic C4117-066 MLS Cylinder Head Gasket Bore Thick - 75.5mm 066

The Cometic C4117-066 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered for Honda D-series engines. This precision gasket features a 75.5mm bore diameter and .066" (1.68mm) compressed thickness, designed to provide superior sealing under high-compression and boosted applications.

Key Features:

• Multi-Layer Steel (MLS) construction for maximum durability and heat resistance
• 75.5mm bore diameter optimized for D-series engine specifications
• .066" compressed thickness for proper compression ratio management
• Advanced embossment technology ensures even clamping pressure distribution
• Viton rubber coating provides enhanced sealing properties
• Reusable design allows for multiple installations when properly maintained

Compatible Engine Codes:

• Honda D15B1 - 1.5L SOHC 16-valve
• Honda D15B2 - 1.5L SOHC 16-valve
• Honda D15B6 - 1.5L SOHC 16-valve
• Honda D15B7 - 1.5L SOHC 16-valve VTEC-E
• Honda D15B8 - 1.5L SOHC 16-valve VTEC
• Honda D16A6 - 1.6L SOHC 16-valve

Cometic MLS gaskets are constructed from multiple layers of stainless steel, providing superior resistance to blowout and combustion pressure. The gasket's ability to withstand extreme cylinder pressures makes it ideal for turbocharged, supercharged, and naturally aspirated performance builds. Each layer is coated with a proprietary Viton rubber material that seals surface imperfections better than conventional gaskets.

Technical Specifications:

• Bore: 75.5mm (2.972")
• Compressed Thickness: .066" (1.68mm)
• Material: Multi-Layer Stainless Steel with Viton coating
• Maximum cylinder pressure rating suitable for high-performance applications

This gasket requires proper surface preparation for optimal performance. Cylinder head and block surfaces should be machined to a 50-60 RA finish for best results. Cometic recommends using copper spray sealant on both sides of the gasket during installation and following proper torque specifications for your specific engine application.