How is it not safe to run a cpu with a stock voltage of 1.250v at 1.4375v @ 4.0ghz 24/7? Thats not much of a voltage increase for awesome performance...
On topic, no suprise the intel stock cooler is lame, no change there! As Llwyd said, next to no one who buys a $1K (iirc) chip will run on a stock cooler...