Cometic GM L42/L61 Gen-1/2 ECOTEC .070in MLS Cylinder Head Gasket - 87mm Bore

What you get here is a Cometic Multi-Layer Steel (MLS) head gasket designed for GM L42 and L61 ECOTEC engines, specifically for Gen-1 and Gen-2 applications. This gasket has a bore size of 87mm and a compressed thickness of .070 inches, making it a solid option when you're rebuilding the top end of these engines. It's built to handle the demands of modern, higher-output engines without needing any extra sealants.

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 temperatures up to 482 degrees Fahrenheit. This coating is tough and works well with different block and head materials, including aluminum heads on cast iron blocks, and it can handle the stresses that come from those combinations. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .070 inches on this particular gasket.

This gasket fits a range of GM vehicles, including models like the Chevrolet Cobalt, Pontiac G5, and Saturn Ion. It's a well-built component that's designed to provide a reliable seal for your engine.