No. Overclocking/Underclocking is reserved for K chips.
Yes, for a brief stint it DID look like ASRock and a few others were going to allow overclocking non-K chips on H170 boards, but it was all for naught. Soon, Intel squashed it by pushing microcode updates via every avenue. BIOS and Windoes.
So sure, you MIGHT be able to do it.. But say goodbye to any firmware or software updates. My opinion, It's just not worth the hassle.