Cometic GM LS1 SB 4.100in Bore .080in MLS-5 Head Gasket

When you're rebuilding the top end of a GM LS Gen-3 or Gen-4 small block V8, getting the head gasket right is crucial for sealing combustion pressure. This Cometic MLS-5 head gasket is built specifically for these popular engines, featuring a 4.100 inch bore and a compressed thickness of 0.080 inches.

Cometic uses a Multi-Layer Steel (MLS) construction for these gaskets, which means they're made from several layers of stainless steel. This design offers improved strength and the ability to rebound, helping them maintain a seal under high stress. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, making it suitable for both aluminum-to-aluminum and aluminum-to-cast iron block setups. Because they're MLS, these gaskets don't require any additional sealants, simplifying the installation process.

This gasket is a solid option for a wide range of GM vehicles, from Corvettes and Camaros to Silverado trucks and Cadillac sedans. It's designed to handle the demands of high-output engines, ensuring a reliable seal for your rebuild.