Cometic C5751-080 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.060

The Cometic C5751-080 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 high-performance gasket features a 4.060-inch bore diameter and 0.080-inch compressed thickness, making it ideal for stock rebuilds and mild performance builds.

Key Features:

• Multi-layer steel construction provides superior sealing and durability
• 4.060-inch bore diameter accommodates stock and slightly overbored cylinders
• 0.080-inch compressed thickness for precise compression ratio tuning
• Compatible with LS1, LS2, LS3, LS6, and other Gen III/IV LS engines
• Embossed stainless steel layers with FKM (fluoroelastomer) coating for maximum combustion seal
• Handles extreme cylinder pressures and temperature fluctuations
• Designed for aluminum cylinder heads and blocks

Cometic MLS gaskets are manufactured using multiple layers of stainless steel with strategically placed embossments that create the optimal sealing load. The FKM rubber coating enhances the gasket's ability to seal minor surface imperfections while resisting oil, coolant, and combustion gases. This gasket is an excellent choice for street performance, track applications, and engine rebuilds where reliability and precise compression control are essential.