Cometic C5317-045 MLS Cylinder Head Gasket GM Bore Thick - LS1/LS2/LS3/LS6 4.130 045

The Cometic C5317-045 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 4.130-inch bore diameter and .045-inch compressed thickness, making it ideal for stock and mild performance builds.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability
• 4.130-inch bore diameter for proper combustion seal
• .045-inch compressed thickness for optimal compression ratio
• Compatible with Gen-3 and Gen-4 LS engines (LS1, LS2, LS3, LS6)
• Engineered to withstand high cylinder pressures and temperature cycling
• Embossed stainless steel layers with elastomeric coating for maximum conformability

Cometic's MLS gasket technology features multiple layers of stainless steel with specialized coatings that allow the gasket to recover and maintain sealing pressure under extreme conditions. The embossed active sealing area ensures maximum surface contact while accommodating block and head imperfections. This gasket is designed for applications requiring precise thickness control and reliable sealing in performance street and mild racing applications.