Our model specific billet 6061 aluminum valve covers are a direct replacement for your old leak-prone factory covers with a design that pays homage to the factory parts, duplicating appearance as closely as possible to the originals. We have added the much needed rigidity to the gasket area while still keeping the covers nice and light. These covers are machined to fit the OE factory seal (sold separately). Covers feature a black-anodize finish and fit all factory hardware. Lower covers require qty 12 wire clips 99310590200 and qty 12 clip screws 99991909600. Available as a complete set of four upper (99310511505LN) and lower (99310511607LN) covers or as pairs of upper or lower covers. Made in the USA in our in-house manufacturing facility. Custom colors are available for a small upcharge.