Cometic C5477-049 MLS Cylinder Head Gasket GM Bore - LS1/LS2/LS3/LS6 4.000

The Cometic C5477-049 is a 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-manufactured gasket features a 4.000-inch bore diameter and .049-inch compressed thickness, making it ideal for stock and mild performance builds.

Key Features:

• Multi-Layer Steel construction provides superior sealing and combustion pressure resistance
• 4.000-inch bore diameter accommodates standard LS engine bore sizes
• .049-inch (1.24mm) compressed gasket thickness for precise compression ratio tuning
• Compatible with LS1, LS2, LS3, and LS6 Gen-3 and Gen-4 small block V8 engines
• Engineered to withstand the thermal expansion and contraction of high-performance engines
• Embossed stainless steel layers with advanced coating technology ensure leak-free sealing

Cometic MLS gaskets are the preferred choice for engine builders and performance enthusiasts who demand reliability and precision. The multi-layer design distributes clamping pressure evenly across the sealing surface while accommodating minor surface imperfections. This gasket is suitable for street, strip, and track applications where durability and consistent sealing are critical.