Cometic C5317-054 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.130 054

The Cometic C5317-054 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 4.130-inch bore diameter and a compressed thickness of .054 inches, making it ideal for stock to moderate performance builds.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability under extreme conditions
• 4.130-inch bore diameter accommodates standard LS engine cylinder dimensions
• .054-inch compressed thickness for precise compression ratio tuning
• Compatible with LS1, LS2, LS3, and LS6 Gen III/IV small block V8 engines
• Advanced coating technology ensures optimal sealing between head and block surfaces
• Resistant to combustion pressure, coolant, and oil leakage
• Designed for street performance, racing, and engine rebuilding applications

Cometic MLS gaskets utilize multiple layers of stainless steel with specialized coatings to create a gasket that can withstand the thermal expansion and contraction cycles of high-performance engines. The embossed layers provide multiple sealing points while maintaining the ability to conform to minor surface imperfections. This gasket is the professional choice for builders who demand reliability and consistent performance.