not really, i had an 8450 and i was barely tapping 2.5ghz. You might be able to get it higher with a 790gx chipset, ive seen guys hit 3.2ghz with 8450s. Remember though 790gx. Its not the cooler though, its your mobo.
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My pc: Chieftec Dragon Case-Phenom 2 940 (stock cooler) 3.7ghz-Corsair TX650-160gbX2raid0-2gigs ddr2 dualchannel-M3A78-CM-Radeon HD 4890 1000/1100- all stable fulltime clocks. 1920x1200p scepter Xwing