Cometic Oldsmobile Gen-2 Rocket V8 .040in MLS Cylinder Head Gasket 4.270in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with a thickness of .040 inches and a bore diameter of 4.270 inches, specifically for Oldsmobile Gen-2 Rocket V8 engines. MLS gaskets are known for their ability to handle higher compression ratios and provide a strong seal, making them a popular choice when rebuilding or modifying these classic V8s.

The multi-layer construction uses multiple layers of stainless steel with a specialized coating. This design allows the gasket to conform to the sealing surfaces while maintaining its integrity under high heat and pressure. This particular gasket is designed to fit engines with a 4.270-inch bore, which is common for the Gen-2 Rocket V8, ensuring a proper seal between the cylinder head and the engine block. Using a gasket with the correct bore size is critical for preventing combustion gases from escaping and coolant or oil from entering the cylinders.