Since the post for the LS Swivel Water Necks produced a lot of inquires and orders, we wanted to again post the Swivel Water Necks for the Big and Small Block Chevrolet that utilize the same aircraft aluminum forgings that are machined for 1-1/4″, 1-1/2″ slip on hose and -16, -20 AN threaded male flare. Check out www.xrp.com for other new hose products and our contact info