Cometic Ford Big Block 4.40in Bore .075 Compressed Thickness MLS Head Gasket

When you're rebuilding the top end of your Ford Big Block, you want a head gasket that seals tight and lasts. This Cometic Multi-Layer Steel (MLS) head gasket is built for that job. It features multiple embossed layers of stainless steel, with the outer layers coated in Viton rubber. This construction means it can handle the high output engines common in these Fords and doesn't require any extra sealants to do its job. MLS gaskets are a solid choice whether you're pairing aluminum heads with an aluminum block or with cast iron, as they can manage the different expansion rates and shearing forces between those materials. The stainless steel layers give it strength and help it resist corrosion, while the Viton coating on the outer layers is heat resistant up to 482 degrees Fahrenheit, making it suitable for tough sealing environments.

The center layer is uncoated stainless steel and can be varied to achieve different thicknesses, but this specific gasket has a compressed operating thickness of 0.075 inches. The 4.40 inch bore size is also important to match your engine's specifications. This gasket is designed to fit a range of Ford vehicles from the late 60s through the 90s, including models like the F-250, E-350 Econoline, and Gran Torino, among many others. It's a well-built component for anyone looking to ensure a reliable seal for their engine build.