Description: Precision die cast for a great fit, these water necks are first polished to a high luster, then beautifully chrome plated for lasting beauty. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts. Feature: Water Neck Style:15 degree Swivel:No Sealing Style:O-ring Water Neck Material:Zinc alloy Water Neck Finish:Chrome plated Mounting Hardware Included:Yes Heater Bypass Provision:No Fitment: Fits 1955-1965 Chevy V8 .