Cal Van 38900 Ford 5.4L Spark Plug Port Repair Kit

^Repair and Replaces damaged Spark Plug Threads On Ford V10 4.6 And 5.4 Liter Engines. ^Used to repair damaged heads from blown spark plugs with an alloy steel insert. ^Repair time could be as low as 20 minutes per fix. ^Features an installation guide that makes sure the insert is aligned properly. ^Includes valve air hold test tool tap alignment guide inserts in sturdy plastic case.