Chevy SBC 350 1955-85 Rubber w/Steel Core Valve Cover Gasket Set - Black Constructed from a composite material

Constructed from a composite material with a steel core

Made from 4340 round bar to exact tolerances

These Speedmaster camshaft bearings are made to meet or exceed OEM parts when it comes to strength and durability

They are heat-treated and threads are rolled to provide up to ten times more fatigue strength

these caps have a one way valve

Chevy SBC 350 1955-85 Rubber w/Steel Core Valve Cover Gasket Set - Black Constructed from a composite materialSpeedmaster 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