petrock

If just the porcelain broke, then you should still be able to get a socket on the hex part of the spark plug and unscrew it. A magnet is handy at removing the plugs once they have been unscrewed.

When you re-install new plugs, I would advise using some anti-sieze on the spark plug threads. A little dab towards the electrode side of the plug will do ya. When you screw it in, the anti-sieze will get drawn around & up the plug, coating the threads nicely. Also, to help lengthen the life of your COP boots, a little bit of Dielectric grease just inside the boot and on the porsilin part of the plugs will help a lot. Keeps the boot from sticking to the plug so it doesn’t rip or damage the spark plug when you remove the COP.

Good luck...

kilr95ss

Looks like someone put a heli coil in there and set too deep the socket comes off the hex before it is seated, started another thread about that:

https://mustangforums.com/forum/4-6l...g-in-head.html