Billet Specialties 96021 Chevrolet big block aluminum "short" valve covers. These "short" covers measure 2 3/4" tall. Features and engraved Chevy Bowtie and ball milling on the top. Includes grommets and stainless steel bolts. Each cover has 1.22" breather/oil fill holes. CNC machined in the U.S.A. Polished to a brilliant shine. The picture shows a comparison of the stock height cover to the "tall" cover. Sold as two "short" valve covers. Billet Specialties 96021 96121 Chevy Bowtie big block aluminum valve covers 96021 Billet Specialties 96121 Chevrolet big block aluminum "tall" valve covers. Features a GM Licensed engraved Chevy Bowtie and ball milling on top. These "tall" covers measure 3 3/4" tall. Includes grommets and stainless steel bolts. Each cover has 1.22" breather/oil fill holes. CNC machined in the U.S.A. Polished to a brilliant shine. The picture shows a comparison of the stock height cover to the "tall" cover. Sold as two "tall" valve covers. 96121 Push in billet aluminum PCV valve. Works with the valve cover shown above. Valve is replaceable through the bottom of the aluminum housing. Sold as one PCV valve. 44BSP22120 Billet Specialties Chevy Bowtie valve cover breather. Precision machined from 6061-T6 billet aluminum. Features a unique two-piece design with a positive o-ring seal and washable filter element. Notice the attractive GM Licensed Chevy Bowtie styling. Fits common custom valve covers with 1.22 breather holes. Works well with the valve covers shown above. Sold as one breather. 8BSP20220 Billet Specialties 21220 Chevy Bowtie valve cover breather. Precision machined from polished 6061-T6 billet aluminum. This breather has a hose barb for a 3/8" hose for positive crankcase ventilation. Features a unique two-piece design with a positive o-ring seal and washable filter element. Notice the attractive GM Licensed, Chevy Bowtie styling. Fits common custom valve covers with 1.22 breather holes. Sold as one breather. 4BSP21220 HOW TO ORDER: 1. If there is an applications box, click, then scroll the applications box to find your vehicle. 2. Click on your vehicle. 3. Click "add to cart" 4. Enter your information and submit order. 5. If there is no applications box, then just click "add to cart", then enter your information. HOURS: 11:00 am to 6:00 pm Monday - Friday Eastern Standard Time We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page. We will not ship to freight forwarding - expediting companies. PAYMENT METHODS: PayPal, Visa, Mastercard, Discover, American Express, money orders.