Cometic Pontiac 400/428/455 V8 .030in MLS Cylinder Head Gasket - 4.410in Bore

If you're rebuilding the top end of your Pontiac V8, like a 400, 428, or 455, this Cometic Multi-Layer Steel (MLS) head gasket is a solid choice. It's designed with a compressed thickness of .030 inches and a bore size of 4.410 inches, making it suitable for a range of classic Pontiac applications, including models like the Firebird, Grand Prix, and LeMans from the late 60s through the late 70s.

What makes these MLS gaskets stand out is their construction. They're built from multiple layers of stainless steel, which gives them increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments up to 482 degrees Fahrenheit. This advanced design means you don't need any extra sealants, and it works well whether you're mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks, as it can handle the shearing forces that can occur between different metals.