ProformÃÂ GM Performance 141-840 Valve Covers, Cast Aluminum, Black Wrinkle, Raised Chevrolet Logo, Tall, Centerbolt, Chevy, Small Block, Pair. Give your engine a custom look with a pair of GM licensed slant edge valve covers by Proform. The diagonal cut of the top section ensures no mess, and the bottom lip will give a tight seal. Each of these valve covers features oversize bolts for fast removal and is designed to clear roller rockers. Proform manufactures these valve covers out of quality materials to ensure a proper fit and durability. Includes removable baffles, grommets and mounting bolts.Notes: Fits non-LS centerbolt cylinder heads.