Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .045in MLS Cylinder Head Gasket - 4.350in Bore - RHS

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 L18 Vortec 8100 Gen-VII Big Block V8 engines, designed to handle the demands of high-output applications. This gasket is a right-side specific unit, crucial for ensuring proper sealing between the cylinder head and the engine block.

This gasket is constructed from multiple layers of stainless steel, which gives it increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This Viton coating is key to achieving a maximum seal, even with different block and head materials like aluminum to aluminum or aluminum to cast iron. The center layer is stainless steel and can be varied to achieve the specific compressed thickness of 0.045 inches, which is important for maintaining correct compression ratios.

This gasket fits a range of heavy-duty GM trucks and SUVs, including models like the Chevrolet Silverado 2500 HD and GMC Sierra 3500. Because it's an MLS gasket, it doesn't require any additional sealants, making installation more straightforward. Just ensure your mating surfaces are clean and flat, and this gasket will do the rest.