Cometic Ford 221 Flathead V8 .066in MLS Cylinder Head Gasket - 3.156in Bore - 21 Stud

Starting with a multi-layer steel (MLS) construction, this Cometic head gasket uses embossed outer layers coated with Viton, a heat-resistant elastomer. This design choice is key for sealing performance in high-output engines, especially when mating aluminum heads to cast iron blocks, as it can handle the shearing forces that develop between dissimilar metals. The compressed operating thickness is precisely 0.066 inches, with a 3.156-inch bore diameter, and it's designed for 21-stud configurations.

The multi-layer stainless steel build offers increased strength and resilience, allowing the gasket to rebound and resist corrosion over time. The Viton coating on the outer layers is rated for temperatures up to 482 degrees Fahrenheit (250 C), making it suitable for demanding sealing environments and various surface finishes. This gasket is built to provide maximum sealing without requiring additional sealants, simplifying installation and ensuring a solid seal for your Ford Flathead V8.

This gasket fits a wide range of Ford and Mercury vehicles from the late 1930s through the early 1950s, including many Pickup models, Ford Custom, Crestline, and Mercury Monterey. It's a well-built component designed to handle the specific needs of these classic V8 engines.