Superior Sealing for LS1 Engines

The Cometic MLS (Multi-Layer Steel) Head Gasket is the gold standard for high-output GM LS1 engines. Engineered with multiple embossed layers of stainless steel and finished with a heat-resistant Viton rubber coating, this gasket provides an unmatched seal that prevents leaks under extreme cylinder pressures. With a compressed thickness of 0.040 inches and a 4.060-inch bore, it is specifically designed to handle the thermal expansion and shearing forces common in high-performance engines.

Key Advantages

• Multi-Layer Steel: Provides superior rebound and strength.
• Viton Coating: Heat resistant up to 482°F (250°C) for a perfect seal.
• No Sealant Required: Designed for a clean, dry installation.
• Material Compatibility: Ideal for aluminum-to-aluminum or aluminum-to-iron mating surfaces.

Whether you are building a street-strip LS1 or a dedicated track engine, these gaskets ensure your compression stays where it belongs. The MLS design resists corrosion and maintains torque set, providing peace of mind for high-horsepower builds. These gaskets are the preferred choice for professional engine builders who demand reliability and performance from their valvetrain and cylinder head assemblies. Find the best engine sealing solutions for your GM vehicle at GGCRACING.