Overclock EVGA GTX Titan Black

[XPLOT1ON]

One of my friend is looking to get GTX Titan Black for work related purpose. How easy is it to over-clock the standard EVGA Titan Black clocked speed to match with the clock speed of the “Superclock version”.
The system that he is running is fully water cooling loop

 

[XPLOT1ON]

Bump

 

[Neil Dangat]

the superclocked titan balcks are picked from the better of the chips so it might be a bit hard