Chevrolet water neck for small block and big block engines features o ring sealing, 45 degree angle, show polished finish. Swivels 360 degrees for perfect positioning. Includes two chrome allen bolts. Chevrolet aluminum swivel water neck 30171 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.