PachiMc :
should i use it on gtx 760 (i will probably buy a 1080 ti after) or my intel i7 7700 ?
Neither of those items need to be liquid cooled. The only time you really need liquid cooling is for overclocking, and since the i7-7700 (non-K) is not overclockable it won't make too big of a difference at all.
If you are doing it for bragging rights or just to say that you did it, go with an AIO CPU cooler, these are the easiest to install. A liquid cooled 1080ti would be cool.