You might be able to, it depends on a number of things. How well your cpu overclocks, can it attain higher multipliers on less voltage (voltage creates more heat but may need to be increased for stability as clocks are increased), ambient room temps, case airflow etc. Try and see is all you can do. If you have a z series board I don't see any reason not to, you already have the k series cpu.
Keep an eye on temps and the overclocking process is pretty much the same method. Slight adjustments to the multiplier, increasing voltage a little at a time as necessary for stability, checking with programs like realbench for stability and prime95 v26.6 (small fft's) to see if thermals are in check, rinse and repeat.