− Decrease quantity for Valve Cover Gasket, Cork/Rubber with Composite Core, 0.250 in. Thick, Hemi Gen 1, 426-527 C.I.D, Dodge, Plymouth, Pair Quantity + Increase quantity for Valve Cover Gasket, Cork/Rubber with Composite Core, 0.250 in. Thick, Hemi Gen 1, 426-527 C.I.D, Dodge, Plymouth, Pair Add to cart