[rhandwor]

The manufacturer of the kit gives instructions with the insert which states to use red permatex. These inserts are thicker and if you look at the tool it peens the top for tapered plugs. It also locks the insert in place the anti seeze allows the plug to be removed without pulling the insert. My heli coil kit says don't use tapered plugs with them. When removing a plug with a heli coil they tend to come out with the plug if he doesn't have a tool its back to the shop. Even if an insert comes out I've taken them off of the plug and reused them.
Any compound will stay in certain areas preventing leaking it will wipe off certain areas so the plug is grounded.
I have a time cert kit and the tap is the same part number. A friend with a shop uses these inserts and the engines have been out over 1 year with no problems. Matco sells the time cert kit so a lot of mechanics use them also.
Ford also says don't use helicoils in Triton engines. They even specify a specify an aluminum alloy for the insert. They sell them on ebay with $600.00 kits. A company will even come to your house if you have a garage for a fee but cheaper than going to the Ford garage. The companies have a video and instructions on the web site. Ford changed from a 1/2 thread plug to a full thread plug because of all the inserts on these engines. Ford dealers get around $1200 to $2000 for the job.