As usual, I got myself into another unplanned snafu! Replaced my thermostat and ended up stripping the threads in one of the water neck outlet pilot holes in the manifold (Edelbrock Performer). Thinking about helicoiling, but the pilot holes are not deep enough for the helicoil (the shortest length helicoil for that bolt size is about 1/2 inch deep). I would need to deepen the original pilot hole by about 1/4 of an inch to get the helicoil to fit properly. Not sure if this is a good idea or not. Anyone done this before or any thoughts? I guess if I screw it up I can just get another manifold! Thanks as usual for the help!