Cometic Chevrolet ZL1 Mark-IV Big Block V8 .040in MLS Cylinder Head Gasket - 4.250in Bore

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for specific Chevrolet V8 engines. You get one well-built gasket, ready to seal your cylinder heads. It's built with multiple layers of stainless steel, giving it strength and the ability to rebound, which helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing jobs and different surface finishes, making it suitable for both aluminum and cast iron blocks. This gasket has a compressed operating thickness of .040 inches and a bore size of 4.250 inches, intended for high-output applications where a reliable seal is crucial.

Cometic's MLS design means you don't need to add any extra sealants; the gasket itself is made to provide maximum sealing performance. This construction is ideal for engines that push more power, as it can handle the shearing forces that can occur between different block and head materials. The center layer is stainless steel and can be varied in thickness, but in this specific gasket, the compressed thickness is set at .040 inches to meet the needs of your engine build.