Oldsmobile 400 425 455 Black 3/16 Thick Rubber Steel Core Valve Cover Gasket Set The outer case is made

The outer case is made from 8620 Chrome-Nickel-Moly steel and the case hardened for long life

Engineered for durability and precision

and are a terrific value

choose a Speedmaster distributor cap

Embroidered Speedmaster logo

Oldsmobile 400 425 455 Black 3/16 Thick Rubber Steel Core Valve Cover Gasket Set The outer case is madeSpeedmaster valve cover gaskets are manufactured from high quality rubber, which is molded over and vulcanized to a rigid steel frame. They won't leak, blow out, or get sucked in, the way stock or inferior quality aftermarket gaskets can. These gaskets feature superior quality rubber and steel, which outlast cork and rubber composite designs to provide years of dependable service, especially if you frequently have to remove and reinstall the valve