Cometic GM Small Block 4.080 inch Bore .027 inch MLS Head Gasket w/ Valve Pockets

Cometic Gasket is a well-known name for creating advanced sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's built for GM Small Block engines with a 4.080-inch bore and a compressed thickness of .027 inches, specifically designed to work with Vortec heads. This gasket is ideal for rebuilding or upgrading engines where a reliable seal is critical, whether you're pairing aluminum heads with aluminum blocks or aluminum heads with cast iron blocks. The multi-layer steel construction offers increased strength and resistance to corrosion, helping to handle the shearing forces that can occur between different block and head materials.

The outer layers of this gasket are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating is designed to perform in tough sealing environments and on various surface finishes. The center layer is uncoated stainless steel, and its thickness can be varied to meet different requirements. Because it's an MLS gasket, it doesn't require any additional sealants, simplifying installation and ensuring a clean, effective seal right out of the box. This gasket fits a wide range of vehicles, including many Chevrolet and GMC trucks and cars from the early to mid-1980s.