ok, heres the deal. i went to change the head gasket today, and could not get the crank pulley off. i tried an impact wrench and a 1/2 breaker bar. no luck...

also, one of the sparkplugs somehow broke while trying to get it out. now the threaded part is stuck in the head. tried an easy out...nothing.....tried drilling it out, nothing....it seems to be fused in there. i am going to try a tap tomorrow to tap the thread the size of the plug again...if that does not work, does anyone know if a helicoil will work in there???

needless to say a few hour project still sits incomplete....

any help or tips would be great...

also if the head is fooked....where can i get a good D16Z6 head?