Small Block Valve Covers - Black Chevrolet script. Our polished aluminum valve covers are guaranteed to draw attention to your engine compartment. Our valve covers are produced from a high grade aluminum that is polished to Billet Specialties standards and each design is CNC machined in the USA.TALL , and have a 1.25 diameter breather hole positioned between the rockers to reduce oil splash. Use tall if using roller rockers and/or stud girdles. Hight is 3 3/4 inch Talls. Product Features: - Includes metal baffles - Includes Grommets - Accepts 1-1/4 Breathers. This item is in the category "Automotive\Parts & Accessories\Car & Truck Parts & Accessories\Other Car & Truck Parts & Accessories". The seller is "vegasrodparts" and is located in this country: US. This item can be shipped worldwide.