that is what i am doing to my Gorb today.
I'll geta water block once i am bored of the Gorb and need something new to work on...
The only diff i was thinking is not a strait hole through the orb, but at 2 angles so that more water will be in the heatsink at a time....
the worst that can happen is GORB dies, and so does Celeron 2 ....
the best, it works
let you knowhow it turns out