GM Performance 141-366 high tech grey valve cover hold down clamps for Chevy small block engines. Features the Bowtie logo. Provides more clamping force for a better valve cover seal. Sold as a pack of 4 valve cover hold down clamps. Order 2 packs for a complete set. GM Performance 141-366 grey Chevy small block valve cover hold down clamps 141-366 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.