Chevy SBC 350 1955-85 Rubber w/Steel Core Valve Cover Gasket Set - Blue These Speedmaster air cleaners are

These Speedmaster air cleaners are CNC-machined from billet aluminum and anodized

and sludge

Speedmaster main caps are precision machined from superior-quality steel

mechanisms

chrome mounting brackets

Chevy SBC 350 1955-85 Rubber w/Steel Core Valve Cover Gasket Set - Blue These Speedmaster air cleaners areSpeedmaster 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