Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .070in MLS Cylinder Head Gasket - 4.100in Bore - LHS

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's built for GM Duramax engines like the LB7, LLY, LBZ, LMM, LGH, and LML, specifically designed to handle the demands of high-output applications. This gasket helps ensure a solid seal between your cylinder head and engine block, which is crucial for maintaining compression and preventing coolant or oil leaks.

What makes these MLS gaskets stand out is their construction. They use multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping them resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, making it ideal for tough sealing jobs. This design means you don't need any extra sealants, and it works well whether you're mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks, as it can handle the shearing forces that can occur between different metals. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .070 inch compressed thickness on this particular gasket, which also features a 4.100 inch bore size.

This gasket fits a wide range of GM trucks, including models like the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD, among many others. It's a solid option when you need reliable sealing for your Duramax engine rebuild or repair.