Originally Posted by JimVonBaden
I've repaired dozens of valve cover threads with Helicoils, never an issue. It is simple, easy to do freehand, and holds the minimal 8nm of torque just fine.
I've used Helicoils on head studes and brake calipers with no issues as well.
The kit with tap, tool and 12 inserts is $40. Do I need the tool?