Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .070in MLS Cylinder Head Gasket - 4.280in Bore - RHS

When you're rebuilding the top end of your GM L18 Vortec 8100 Gen-VII Big Block V8, a good head gasket is crucial for a solid seal. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of high-output engines, and it fits a range of trucks and SUVs like the Chevrolet Silverado 2500 HD and GMC Sierra 3500.

This gasket is constructed from multiple layers of stainless steel, which gives it strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes, meaning you don't need any extra sealants. The center layer is also stainless steel and can be varied to achieve different thicknesses; this particular gasket has a compressed thickness of .070 inches and a bore size of 4.280 inches, making it suitable for both aluminum and cast iron blocks.