1987-97 Chevy 5.0L & 5.7L Tall Polished Aluminum Center Bolt Valve Covers - Smooth Chevy small block smooth polished aluminum center bolt valve covers fit 1987-97 Chevy 5.0L & 5.7L small block engines. There is one breather hole in each cover. They are the tall style to clear high performance roller rockers. Includes stainless steel bolt kit. Height: 3-11/16".