Oldsmobile 400 425 455 Blue 3/16 Thick Rubber Steel Core Valve Cover Gasket Set These rockers are precision-machined to

These rockers are precision-machined to ensure consistency and ratio accuracy and have a great looking anodized finish

They do this using a unique design in which cooling tubes draw cool air through the transmission fluid

They feature very precise valve operation

These Speedmaster fans are designed for most GM and Ford alternators (except truck applications)

they replace your existing worn or damaged valve guides

Oldsmobile 400 425 455 Blue 3/16 Thick Rubber Steel Core Valve Cover Gasket Set These rockers are precision-machined toSpeedmaster 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