Joe, ezyouts are not the answer to all prayers, but they can be useful when the bolt was not tight to begin with. In this case, it looks as if the bolt stretched and broke due to pressure under the head, so the stump of it should not be tight in the crankshaft. It is different when the bolt breaks torsionally: on tightening due to bottoming in the crankshaft thread, or on loosening due to being rusted in. When that happens, there are much better stud extraction methods. The weakness of the ezyout is that it expands the threaded stump when you try to extract it, because it is conical and has a left hand thread of its own. The harder you try, the worse the result. It is important to be gentle applying the torque, and if you find it won't move, change immediately to plan B.
Incidentally when you drill the stump to install the ezyout, you'll probably find out whether the bolt was soft. Drilling a soft bolt and drilling a six-stripe bolt are very different experiences.
