The Horizon Tool Ford Spark Plug Insert Installer, which is designed to aid in the repair of Ford Modular cylinder heads. According to Horizon, this patented tool is a quality, foolproof repair system that is both fast and simple to use. Horizon says you can use these alloy steel inserts to repair damaged heads from blown spark plugs in as little as 15 minutes, no more than 45. Each set includes 6 inserts.
