Battling overheating new 360 build

I was wondering if anyone else knew about the inherent flaws of the "Hex Fan". I have friend that ran a brand new one two weeks on a home built 8500 rpm 302 in a '70 Nova and a blade cracked off and speared the battery on the second to third powershift. Two weeks to tear everything down, polish, replate... Dirt trackers in area also stated the propensity of those wonderful blades to fold flat and block airflow... may be okay if you want a racy looking box fan for your shop, but tragically worthless for anything of any real value...