Cometic Ford SB 289/302/351 4.200in Bore .052in MLX Non-SVO Head Gasket

Cometic Gasket is well-known for their multi-layer steel head gaskets, and this particular one, the C5025-052, is built for Ford small block engines like the 289, 302, and 351 Windsor V8s. It's designed with a 4.200-inch bore and a compressed thickness of .052 inches, making it a solid choice for rebuilding or upgrading these classic Ford powerplants. These gaskets are engineered to handle the demands of higher output engines, ensuring a reliable seal between your cylinder heads and engine block.

What makes these MLS (Multi-Layer Steel) gaskets stand out is their construction. They're made from multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping to prevent leaks. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating is tough and can deal with different surface finishes and sealing conditions. The center layer is also stainless steel and can be varied to achieve different thicknesses, like the .052 inches on this specific gasket. This design means you don't need any extra sealants, and they work well with both aluminum and cast iron blocks, even when paired with aluminum heads, as they can manage the stresses between different metals.

This gasket fits a wide range of Ford vehicles, including classic Broncos, F-Series trucks, and various Ford cars from the 60s through the 90s. It's a well-built component designed for performance and durability.