scythe shuriken 2 rev b is a perfect fit as it is 71 mm tall w/ regular sized 120mm fan according to spcr
That is a bit on the tight side.
Given that you have 90mm of space, and you are overclocking a i5 3570k. You do not have a lot of good choices.
The Noctua NH-L12 will fit with just an underfan... and will need only 66mm. Because it uses an underfan it doesn't need any headroom... the headroom is build in. SPCR was able to shoe horn in a 120mm Nexus fan into the underfan position on this heat sink.
Check out its compatibility with your motherboard and video card here:http://www.noctua.at/main.php?show=comp ... =46&lng=en
Here are the cooling capacity guidelines for this cooler: http://www.noctua.at/main.php?show=nh_l ... guidelines
Here is its benchmark performance against other smaller sized heatsinks, including the Scythe Big Shuriken 2... which I wouldn't rely on for adequate cooling capacity in your situation:http://www.silentpcreview.com/article1278-page6.html
Also see this discussion hereviewtopic.php?p=562449#p562449