Cometic C5318-089 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.160

The Cometic C5318-089 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for GM LS Gen III and Gen IV small block V8 engines, including LS1, LS2, LS3, and LS6 applications. This gasket features a 4.160-inch bore diameter and a compressed thickness of .089 inches, making it ideal for performance builds and stock replacement applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high cylinder pressures
• 4.160-inch bore diameter accommodates standard LS engine cylinder dimensions
• .089-inch compressed thickness for precise compression ratio tuning
• Compatible with GM LS1, LS2, LS3, and LS6 Gen III/IV small block V8 engines
• Engineered to withstand extreme temperatures and pressures in performance applications
• Eliminates the need for additional sealants when properly installed

Cometic MLS gaskets feature multiple layers of stainless steel with a Viton rubber coating that provides exceptional sealing capabilities. The embossed layers allow the gasket to adapt to minor surface imperfections while maintaining optimal sealing pressure. This gasket is manufactured to strict tolerances and is a trusted choice for both professional engine builders and performance enthusiasts working with LS-based powerplants.