This is exactly how I have my pi4's overclocked. Been running 24/7 that way without any issues. I do have fans on them to keep temperatures down.
Also have this article from The MagPi from a few years ago. It contains more or less the same information with maybe a few additional monitoring commands and a more specific frequency of 2147.<p><a href="https://magpi.raspberrypi.com/articles/how-to-overclock-raspberry-pi-4" rel="nofollow noreferrer">https://magpi.raspberrypi.com/articles/how-to-overclock-rasp...</a>