Cometic Buick Big Block V8 .040in MLS Cylinder Head Gasket - 4.312in Bore

When you're rebuilding the top end of your Buick Big Block V8, getting a solid seal between the cylinder head and the block is critical. This Cometic Multi-Layer Steel (MLS) head gasket is built to handle the demands of performance engines, offering a reliable seal without needing extra sealants. It's designed to work with both aluminum and cast iron blocks, and it can handle the stresses that come from different metal combinations.

This gasket is constructed from multiple layers of stainless steel, which gives it strength and helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit and seal effectively even on rougher surfaces. The center layer is uncoated stainless steel, and its thickness is what determines the gasket's final compressed operating thickness, which is set at .040 inches for this part. This design helps prevent shearing forces and provides a durable seal for your engine.

This gasket fits a wide range of Buick V8 applications, including models like the Electra, LeSabre, and Riviera from the late 60s through the mid-70s. It's a well-built component that's ready to go right out of the box for your engine build.