This great product from MMR allows you to replace that pesky metal heater tube and water pump nipple with AN lines and fittings. The MMR part features a -8 AN fitting and is a breeze to install. Simply tap the old one out of the block and tap in the new one in! USA made of 6061 Billet Aluminum.
ALL Ford 4.6, 5.4, & 6.8 Engines / Blocks