Vintage Series Finned Valve Covers BBC Satin Black Machined Chevrolet Big Block Cast Aluminum Valve Covers Stock or Stock Replacement Valvetrain HolleyHolley's Vintage Series Big Block Chevy valve covers are the latest expansion to the Vintage Series family of aluminum dress up products featuring a classically inspired finned design and a retro style Holley script brandmark. These valve covers are manufactured from die cast aluminum and include cast in oil drippers and emissions provisions punch outs for you custom application. These were designed as a standard height Bbc cover, therefore internal