Oldsmobile 400 425 455 Black 3/16 Thick Rubber Steel Core Valve Cover Gasket Set 1/4" locking dowels have been

1/4" locking dowels have been inserted to stop inner race movement along with a Steel sleeve for sealing ring

providing competition engine builders with the most accurate valvetrain components available today

The increased output of this self-contained ignition easily outperforms stock ignitions and helps to smooth out the power band from idle to high RPM

Speedmaster pushrods feature heat-treated tips for strength and durability and are ideal for any stock rebuild or mildly modified performance buildup

solving issues associated with the weak pressed steel plate bases

Oldsmobile 400 425 455 Black 3/16 Thick Rubber Steel Core Valve Cover Gasket Set 1/4" locking dowels have beenSpeedmaster 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