Cometic GM LS1 SB 4.100in Bore .045in MLS-5 Head Gasket

Cometic Gasket has built a reputation for making solid engine components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s designed for GM LS Gen-3 and Gen-4 small block V8 engines, specifically for a 4.100-inch bore with a compressed thickness of 0.045 inches. This gasket is built to handle the demands of high-output engines, whether you're pairing aluminum heads with an aluminum block or aluminum heads with a cast iron block. The multiple stainless steel layers provide strength and resistance to corrosion, while the outer layers are coated with Viton, a heat-resistant rubber material that ensures a strong seal even in harsh conditions and on various surface finishes. This gasket fits a wide range of vehicles, including popular models like the Chevrolet Silverado, Chevrolet Corvette, and Cadillac CTS.

The construction of this MLS gasket means it doesn't require any additional sealants, simplifying installation. The center layer is stainless steel and can be varied to achieve different thicknesses, but this specific gasket is set at 0.045 inches compressed. This design helps withstand the shearing forces that can occur between different block and head materials, offering a reliable seal for your engine.