Cometic GM LS Gen-3/4 Small Block V8 .054in MLS Cylinder Head Gasket - 3.970in Bore

If you're working on a GM LS Gen-3 or Gen-4 small block V8, this Cometic Multi-Layer Steel (MLS) cylinder head gasket is a solid option for your rebuild or repair. It's designed with a 3.970-inch bore and a compressed thickness of .054 inches, making it suitable for a wide range of applications, including popular models like the Chevrolet Silverado, GMC Sierra, and Cadillac CTS.

This gasket is built from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it maintain a good seal. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F. This construction means the gasket can handle the demands of high-output engines and works well with both aluminum and cast iron blocks, resisting the shearing forces that can occur between different metals.

Because these are MLS gaskets, they don't require any additional sealants, simplifying installation. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .054-inch spec on this particular gasket.