It might but no one can say if any specific kit will or wont reach a speed at anything over what its rated for, even slackening the timings to c9 might not alow much more mhz.
An example of this is i had a 2x1gb kit of ocz platinum ddr2 c5 800mhz that would do over 1150mhz at c5 stock volts or c4 at 1050mhz and a mates set from what we could work out was part of the same batch wouldnt go over 830mhz at c5 stock volts and was only stable at 680mhz c4.