Cometic AMC 390/401 Gen-3 V8 .075in MLS Cylinder Head Gasket - 4.250in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed stainless steel layers, featuring Viton rubber coating on the outer layers. This construction is designed to handle the high output of engines like the AMC 390 and 401, providing a strong seal without needing additional sealants. It's a solid choice for mating aluminum heads to either aluminum or cast iron blocks, as the stainless steel construction can manage the shearing forces that can occur between dissimilar metals.

The MLS design offers increased strength and resilience, with the stainless steel layers able to rebound and resist corrosion. The Viton coating on both sides is a heat-resistant elastomer capable of withstanding temperatures up to 482°F (250°C), making it suitable for demanding sealing environments and various surface finishes. The center layer is uncoated stainless steel, allowing for different thickness options to meet specific engine build requirements; this particular gasket has a compressed thickness of 0.098 inches and an original thickness of 0.075 inches, with a 4.250-inch bore diameter.

This gasket fits a wide range of American Motors and Jeep vehicles from the late 1960s through the early 1990s, including models like the Jeep CJ series, AMC Ambassador, and Jeep Grand Wagoneer. It's a well-built component for rebuilding or repairing your engine's top end.