Cometic Pontiac 400/428/455 V8 .051in MLS Cylinder Head Gasket - 4.300in Bore

Cometic Gasket is known for making well-built sealing solutions, 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 4.300-inch bore and a compressed thickness of 0.051 inches. This gasket is built to handle the demands of high-output engines, ensuring a solid seal without the need for additional sealants.

This MLS gasket is constructed from multiple layers of stainless steel, which gives it strength and the ability to rebound, helping it resist corrosion and withstand the forces between different block and head materials, like aluminum to cast iron. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. The center layer is uncoated stainless steel, allowing for precise thickness control to meet specific engine build requirements.

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