Cometic C5477-030 GM MLS Cylinder Head Gasket Bore - LS1/LS2/LS3/LS6 4.000 030

The Cometic C5477-030 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS Gen-3 and Gen-4 small block V8 engines, including LS1, LS2, LS3, and LS6 applications. This precision gasket features a 4.000-inch bore diameter and .030-inch compressed thickness, making it ideal for stock to mild performance builds.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability
• 4.000-inch bore diameter accommodates standard and performance applications
• .030-inch compressed thickness for precise compression control
• Compatible with LS1, LS2, LS3, and LS6 Gen-3 and Gen-4 engines
• Engineered to withstand high combustion pressures and temperatures
• Reduces gasket failure and coolant leaks common with composite gaskets

Cometic MLS gaskets feature multiple layers of stainless steel with a viton rubber coating that provides exceptional rebound characteristics and sealing properties. The embossed layers create a superior seal around combustion chambers, coolant passages, and oil passages. These gaskets are a preferred choice for performance engine builders and enthusiasts looking for reliable sealing in street, strip, and forced induction applications.