Cometic C5489-030 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.100

The Cometic C5489-030 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS Gen III and Gen IV small block V8 engines, including LS1, LS2, LS3, and LS6 applications. This gasket features a 4.100-inch bore diameter and a compressed thickness of .030 inches, making it ideal for stock and mild performance builds.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability under high heat and pressure
• 4.100-inch bore diameter accommodates stock LS engine cylinder bores
• .030-inch compressed thickness for precise deck height control
• Embossed stainless steel layers with a Viton rubber coating for maximum conformability
• Compatible with LS1, LS2, LS3, and LS6 Gen III and Gen IV small block engines
• Designed to handle the thermal expansion and contraction of aluminum heads and blocks

Cometic MLS gaskets are the choice of professional engine builders and racers worldwide, offering exceptional reliability for street performance and competition applications. The advanced MLS design eliminates the need for retorquing and provides a consistent, leak-free seal throughout the engine's service life.