According to this site, it is 37mm in diameter:
http://www.rcplanet.com/ProductDetai...Show=TechSpecs
And since the CC blower will fit a CC motor, which is larger than that (42mm??), it will fit, but might be a bit loose. Nothing a zip-tire won't fix to cinch up the slack. As far as heatsinks, I have no idea. You could probably get a lot of 36mm heatsinks and slightly spread it open a bit to fit.