Cometic Pontiac 400/428/455 V8 .075in MLS Cylinder Head Gasket - 4.410in Bore

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s designed for Pontiac 400, 428, and 455 V8 engines, featuring a 4.410-inch bore and a compressed thickness of 0.075 inches. This gasket is built to handle the demands of high-output engines, ensuring a solid seal without needing extra sealants.

This MLS gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing conditions and various surface finishes. This construction makes it suitable for combinations of aluminum heads with aluminum blocks or cast iron blocks, as it can manage the shearing forces between different metals. The center shim layer is stainless steel and can be varied to achieve different thicknesses, like the 0.075 inches found in this specific gasket.

This gasket fits a range of vehicles, including models like the Pontiac Firebird, GTO, and Grand Prix from the late 60s through the late 70s. It's a solid option for rebuilding or repairing your Pontiac V8's top end.