Cometic Ford 289/302/351 4.200 inch Bore .040 inch MLS Head Gasket (Non SVO)

This Cometic Multi-Layer Steel (MLS) head gasket is built with a compressed operating thickness of 0.040 inches and features a 4.200-inch bore, making it suitable for a range of Ford Windsor V8 engines, specifically non-SVO applications. The gasket's construction uses multiple layers of stainless steel, which provides increased strength and resistance to corrosion, while also allowing it to rebound and maintain a seal under stress. This design is ideal for combining aluminum heads with either aluminum or cast iron blocks, as it can handle the shearing forces that arise from dissimilar metals.

The outer layers of this gasket are embossed and coated with Viton, a heat-resistant rubber material capable of withstanding temperatures up to 482 degrees Fahrenheit. Viton is chosen for its ability to perform in demanding sealing environments and on various surface finishes. The center layer is uncoated stainless steel and can be varied to achieve different thickness requirements. Because of its advanced construction, this MLS gasket requires no additional sealants for maximum sealing performance in high-output engines.