Cometic GM LS Gen-3/4 Small Block V8 .027in MLS Cylinder Head Gasket - 4.100in Bore

When you're rebuilding the top end of your GM LS Gen-3 or Gen-4 small block V8, getting the cylinder head gaskets right is crucial for a solid seal. This Cometic Multi-Layer Steel (MLS) gasket is built for that job, offering a reliable seal for engines with a 4.100-inch bore. It's designed to handle the pressures and temperatures found in high-output LS engines.

Cometic uses multiple layers of stainless steel for strength and rebound, which helps prevent corrosion and maintain sealing pressure. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and different surface finishes. This construction means the gasket doesn't need any extra sealants, making installation more straightforward. The center layer is stainless steel and can be varied to achieve different gasket thicknesses, with this particular gasket having a compressed thickness of 0.036 inches from its original 0.027-inch thickness.

This gasket is a solid option for a wide range of GM vehicles, from Corvettes and Camaros to Silverado trucks and Cadillac SUVs. Its MLS construction is suitable for mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks, as it can manage the different expansion rates of these materials.