Edelbrock part #4406 Billet Aluminum Breather with 90 deg. PCV port which looks like a traditional breather for standard 1.250" valve cover holes. The breather housing has an internal PCV with a 90 deg. port to attach a hose. This breather is round and is 2.50" at the base with a slight cone shape. Overall height is 2.49". Features a Black powder coated finish