Possible to repair cam journal in MC head?

["Gary G. Erickson" <erickson@teleport.com>]

Well, I'm having the worst luck trying to get this engine put back
together for the track at PIR in November.

The head had been off the car to replace some bent intake valves and do
some other clean-up while I'm in there.

The head re-installation went just fine, (those downpipe nuts are a
b*tch to get to!) but complications developed when I went to reinstall
the cam.

I noticed there is a crack in the #4 cam journal starting at about the
center of the stud, and heading down and towards the outside edge.  (In
the following bad ASCII art, the "X" portion is the stud, the "|"
portion denotes the journal itself, and the diagonal line "/" represents
the crack.

  XXX
  XXX
  XXX
|  /  |
| /   |
|/    |
|     |
|     |

What I need to know is if I have to junk this freshly reconditioned
head, or if there is any feasible way to repair/strengthen the journal. 
And preferably, is there any way to make the repair with the head still
in the car?  Pulling and reinstalling that head again is not really
something that I'm looking forward to.

TIA for any assistance!

-Gary

'85 turbo GT Coupe
'84 4kq