Cometic GM / Mercury 8.1L 496ci 4.350in Bore .051in MLS LH Head Gasket

If you're rebuilding the top end of your GM or Mercury 8.1L 496ci engine, getting the right head gasket is crucial for a reliable seal. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of these larger displacement V8s, offering a strong barrier between your cylinder head and engine block. It's specifically designed for the left-hand side of the engine.

Cometic uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F, ensuring a tight seal even under high operating conditions. This construction means the gasket doesn't require any additional sealants, making installation more straightforward. The center layer is stainless steel and can be varied to achieve different compressed thicknesses, with this particular gasket set at 0.051 inches.

This gasket is a solid option for a wide range of GM and Mercury trucks and SUVs, including models like the Chevrolet Suburban 2500 and GMC Sierra 2500 HD. Its robust construction makes it suitable for both aluminum and cast iron blocks, and it's designed to withstand the shearing forces that can occur when mating different metal types.