First of all, how high you can oc is primarily determined by your luck in getting a good chip.
As of 6/19/17
What percent of samples can get an overclock
at a vcore around 1.4v.
I5-7600K
4.9 72%
5.0 52%
5.1 27%
5.2 16%
5.3 samples exist, unknown % of occurrence
Your chances of meeting your goal is very good.
My suggestion is first to set everything at default, including ram.
Leave all voltages on auto.
Then gradually raise the all core multiplier.
Stress test looking at two things;
Vcore should stay under 1.4v, and temperature should stay under 85c
CPU-Z is good for monitoring vcore. I test with OCCT, it automatically stops the test if it detects 85c.
When you encounter a problem, back off a notch and implement adaptive voltage and speedstep
That allows the multiplier and the associated voltage to reduce when there is little to do.
I use a noctua NH-U12s.
Your H60 is comparable.
As to ram, you can try some XMP settings. But, sometimes aggressive xmp requiring more than 1.2v will impact your OC.