Cometic GM Gen-V/VI Big Block V8 .060in MLS Cylinder Head Gasket - 4.320in Bore

When you're rebuilding the top end of your GM Gen-V/VI Big Block V8, you need a head gasket that can handle the pressure. This Cometic Multi-Layer Steel (MLS) gasket is built for that job. It's designed to provide a strong seal between your cylinder head and block, which is crucial for keeping combustion pressures contained and coolant where it belongs.

What you get here is a well-built gasket made from multiple layers of stainless steel. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating helps create a reliable seal even with different block and head materials, like aluminum heads on cast iron blocks. The center layer is also stainless steel and can be varied in thickness; in this case, it's set up for a compressed thickness of 0.060 inches with a 4.320-inch bore, fitting a range of GM trucks and vans from the early 90s like the Chevrolet C1500 or GMC C2500 Suburban.

Because it's an MLS design, you don't need to worry about applying extra sealants. The embossed layers and Viton coating do the work of sealing effectively on their own, making installation more straightforward. This gasket is a solid option for high-output engines where a dependable seal is a top priority.