Turbo head crack prone areas?

[13204u]

I have the chance to pick up an extra 2.3l turbo head from the local junkyard. I would love to have it as a spare. It is from an 88 TC. I have heard these heads have a tendency to crack. Where exactly should I be looking? Anything else I should be look at after I pull this prior to purchase so I am not just wasting money?

[MikeFleming]

Anywhere it gets really hot - especially around the spark plug threads and exhaust valve seat areas.