Go with a water cooled, even if yours isn't...(I like to think of the oil cooled ones as only "air cooled"...)

See my wesite anyhow.

I don't have a source other than shop around....used you can at least see the free play.

If you break a stud and can't get after it with a left hand cobalt bit, diamand bit, etc Then I say to go ahead and pop the head.

How is your wireharness?
--
www.fidalgo.net/~brook4

if it's original, it's oil cooled. highly recommended to switch.

i did this job with only minor experience and was successful - thanks to Brickboard and specifically, Paul Seminara. biggest tips i can offer are:

1) get a NEW oil delivery pipe
2) loosen psgr side motor mount and jack up engine slightly to both remove and install the turbo more easily
3) spray ex manifold bolts with PB BLASTER for at least few days b4 attempting to loosen them. breaking them is not cool.
4) don't let your timing belt break 9K after doing the work and drive a little ways and burn out your newly installed turbo. ask me why.

possibly gotcha is catalytic converter. if your turbo has been leaking oil into it, it might need replacing to.

i got my turbo used from Brian Leppin. he's at usedvolvoparts.com. call him though - he doesn't answer his email.

jake