Cometic C5317-030 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.130 030

The Cometic C5317-030 is a Multi-Layer Steel (MLS) cylinder head gasket engineered for GM LS Gen III and Gen IV small block V8 engines, including LS1, LS2, LS3, and LS6 applications. This precision gasket features a 4.130-inch bore diameter and .030-inch compressed thickness, making it ideal for performance builds and mild bore applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high cylinder pressures
• 4.130-inch bore diameter accommodates standard and slightly over-bored LS engines
• .030-inch compressed thickness for proper deck height and compression ratio tuning
• Embossed stainless steel layers with elastomeric coating ensure excellent conformability
• Exceeds OEM specifications for performance and racing applications
• Suitable for street, strip, and forced induction applications

Cometic gaskets are manufactured using advanced materials and manufacturing processes to provide maximum reliability in demanding environments. The MLS design allows the gasket to recover and maintain sealing integrity through heat cycles and engine movement, making it the preferred choice for performance engine builders.