not a bad idea because you don't have much force pulling the torque converter away from the flex plate but if you have to pull it back out the red lock tight is so strong it might pull out the helicoil the lock tight blue would be ok
I was thinking along the lines of it unscrewing. I should have mentioned that the Torque Converter is a Suncoast Triple disk. I wasn't too worried about it pulling out. I've used helicoils on stationary stuff with good success but I've never used them on something that rotates.
Thanks for the link Dockboy. What do you guys think of Keenserts?