NEW BILLET SPECIALTIES SMALL BLOCK CHEVY BOWTIE POLISHED ALUMINUM SHORT VALVE COVER SET WITH METAL BAFFLES, RUBBER GROMMETS, & 1 1/4" HOLE FOR BREATHER/PCV Pair of Brand New Chevy Bowtie Aluminum Short Valve Covers for Small Block Chevy's. These Covers are produced by Billet Specialties Inc. (Part # 95121). Billet Specialties polished aluminum valve covers are guaranteed to draw attention to your engine compartment. | * Includes a 1 1/4" diameter breather hole positioned between the rockers to reduce oil splash. 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. | * For the best seal, Billet Specialties recommends the use of a cork gasket with all of the valve covers. Features: | * Metal baffles | * Rubber grommets | * 1 1/4" hole for breather/PCV | * Short design - 2 3/4" Note: If you're using roller rockers and stud girdles, you will need to use the Tall Design valve covers, which we have available. Made in the USA