Cometic C5751-040 MLS Cylinder Head Gasket GM Gen III/IV Bore Thick - LS1/LS2/LS3/LS6 4.060 040

The Cometic C5751-040 is a multi-layer steel (MLS) cylinder head gasket engineered specifically for GM LS-series Gen III and Gen IV small block V8 engines, including LS1, LS2, LS3, and LS6 applications. This precision-manufactured gasket features a 4.060-inch bore diameter and .040-inch compressed thickness, making it ideal for performance builds and engine rebuilds requiring precise compression control.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
• 4.060-inch bore diameter accommodates stock and slightly overbored LS engines
• .040-inch compressed thickness allows fine-tuning of compression ratios
• Embossed stainless steel layers with fluoroelastomer coating ensure reliable sealing
• Designed to withstand high-performance and forced induction applications
• Compatible with LS1, LS2, LS3, LS6, and other Gen III/IV small block V8 engines
• Gasket sold individually - order quantity needed for your build

Cometic Gasket's MLS technology uses multiple layers of stainless steel with advanced coatings to create a gasket that can handle extreme temperatures, pressures, and engine movement. The embossed design provides concentrated sealing pressure around critical areas like combustion chambers and coolant passages. This gasket is an excellent choice for street performance, racing, and boosted applications where reliability and precision are essential.