Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .053in MLS Cylinder Head Gasket - 4.100in Bore - RHS

If you're working on a GM Duramax engine from the LB7 through LML series, this Cometic Multi-Layer Steel (MLS) head gasket is a solid choice for rebuilding or replacing your cylinder heads. It's built with multiple layers of stainless steel, which gives it strength and helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a good seal even in demanding conditions.

This gasket is designed to work with both aluminum and cast iron blocks, and it can handle the stresses that come from different metals expanding and contracting. The center layer is stainless steel and can be varied to achieve different thicknesses, but this specific gasket has a compressed thickness of .053 inches and a 4.100-inch bore, making it suitable for a range of Duramax applications like the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. Because it's an MLS gasket, it doesn't require any additional sealants, simplifying the installation process.