Spark Plug Hole Bad Treads> Heli Coil?

[dozz302]

Hello, looking at a FE head but 1 hole looks like was sitting in water and threads were corroded pretty bad. Is there a way to repair the hole successfully 100%. Would hate to put on a motor then have problems with later while changing plugs and have to pull the head. Thanks

[fekbmax]

Lots of different types of spark plug rethreader's, inserts,  repair kits out there from basic to "professional". For what it's worth i used a cheap rethreader kit from Amazon and repaired 2 holes on my old 360 beater truck about 10 years ago  and  have  had zero problems.  I did loctite them in and always use anti seize on those 2 plugs.