Cometic Oldsmobile Gen-2 Rocket V8 .066in MLS Cylinder Head Gasket - 4.200in Bore

If you're working on an Oldsmobile Gen-2 Rocket V8 engine, this Cometic Multi-Layer Steel (MLS) head gasket is built to handle the demands of high-output applications. It's designed with a specific bore size of 4.200 inches and a compressed thickness of 0.066 inches, making it suitable for a range of performance builds. This gasket is engineered to provide a strong seal between your cylinder head and block, crucial for maintaining compression and preventing leaks.

Cometic's MLS gaskets are constructed from multiple layers of stainless steel, which gives them excellent rebound characteristics and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes, ensuring a reliable seal even with aluminum heads on cast iron blocks. Because they are made of multiple steel layers, these gaskets can withstand the shearing forces that can occur between dissimilar metals, offering a more robust sealing solution than traditional composite gaskets. They are designed to work without additional sealants, simplifying installation.

This gasket fits a wide variety of vehicles, including models like the Buick LeSabre, Oldsmobile 98, and Pontiac Grand LeMans from the 1970s. It's a well-built component for anyone rebuilding or upgrading their V8 engine.