Cometic AMC 390/401 Gen-3 V8 .051in MLS Cylinder Head Gasket - 4.250in Bore

Cometic Gasket has a reputation for making solid sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's built for AMC 390 and 401 Gen-3 V8 engines, specifically designed to handle the demands of higher output applications where a reliable seal is critical. This gasket fits a wide range of vehicles, including models like the American Motors AMX, Ambassador, and Jeep CJ models, ensuring broad compatibility for your project.

This gasket is constructed from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion and maintain its seal over time. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well in tough sealing environments. The center layer is also stainless steel and can be varied in thickness to meet different requirements; in this case, it results in a compressed operating thickness of 0.051 inches with a 4.250-inch bore, making it suitable for both aluminum and cast iron block combinations.