I have a thermoengine, stuck a YSTech 60mm fan on it, did a good job of keeping it cool-29C idle and 46C under seti@home overnight. The fan was only a week old and the bearing went out. Was about to order a new fan when I saw an article here about mounting a 80mm case fan on it from 3dfxcool--almost as much air as the delta 7k and quieter than the YSTech I had on. I thought "I can do this, and I just happen to have one of those fans here!", a hour later I had 4-1" long metal tabs with a hole at each end, mounted them to the 80mm, took off the bad fan, screwed the big fan onto the heatsink, plugged it into the 3pin mobo cpu connection and--works like a charm! Right now I'm running at 30C, and is much quieter. I'm getting 5000rpm out of it. I haven't had the chance to put it under load, going to do that directly.
Just ran seti@home for 30 min, and did a sisoft sandra cpu benchmark ( 15 runs), am still running seti@home as I type this and my temp is only 46C.
In answer to your question, AG73, yes and I love it!