Cometic Chrysler 426/572 4.280in Bore .040in MLS Head Gasket

If you're rebuilding the top end of a classic Mopar big block, like a Chrysler 426 or 572 Hemi, getting the head gasket right is crucial for sealing power. This Multi-Layer Steel (MLS) head gasket from Cometic is built to handle the demands of these high-output engines. It's designed to provide a solid seal between your cylinder head and block, which is essential for proper compression and preventing leaks.

This gasket is constructed from multiple layers of stainless steel, giving it increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F and works well with different surface finishes on aluminum or cast iron blocks. The compressed thickness is set at 0.040 inches, which is a common spec for these engines, and it's designed to work without needing any additional sealants. This makes installation straightforward, especially when mating aluminum heads to either aluminum or cast iron blocks, as the MLS design helps manage the stresses between dissimilar metals.

This gasket fits a range of popular Mopar vehicles from the late 60s and early 70s, including models like the Dodge Charger, Dodge Challenger, and Plymouth Barracuda. It's a well-built component that helps ensure your engine rebuild is sealed up tight and ready to perform.