OER Parts offers a wide selection of Valve Cover Hardware for your 1968 Plymouth Road Runner. OER Parts offers 1968 Plymouth Road Runner Valve Cover Bolt Sets, 1968 Plymouth Road Runner Valve Cover Retainer Tab Set, 1968 Plymouth Road Runner Valve Cover Elbow, 1968 Plymouth Road Runner Valve Cover Grommets, 1968 Plymouth Road Runner Logo Bolt Set, 1968 Plymouth Road Runner T-Bar Wing Nut Set, and 1968 Plymouth Road Runner Wing Nut Set.