Cometic GM LS1 SB 3.910in Bore .051 thick MLS Head Gasket

If you're rebuilding the top end of your GM LS-based engine, getting the head gaskets right is crucial for a solid seal. This Cometic Multi-Layer Steel (MLS) head gasket is built for the job, designed to handle the pressures of modern, high-output V8s. It features a 3.910-inch bore and a compressed thickness of .051 inches, making it suitable for a wide range of GM LS Gen-3 and Gen-4 small block V8 applications, including popular models like the Chevrolet Camaro, Corvette, and Silverado. You'll find these gaskets are a popular choice for everything from street performance builds to more serious engine work.

What sets this gasket apart is its construction. It's made from multiple layers of stainless steel, which gives it increased strength and the ability to rebound and resist corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle extreme temperatures up to 482°F (250°C). This advanced coating ensures a reliable seal even under demanding conditions and works well with both aluminum and cast iron blocks, preventing issues caused by the shearing forces between different metals. Because it's an MLS gasket, it doesn't require any additional sealants, simplifying the installation process.