That kernel is meant for stock jellybean 4.2.2. As for stock kitkat we have no custom kernels. So just rooting is the only way.
As for your device it will not boot 'coz you flashed the wrong kernel on incompatible ROM. Use ODIN to flash the firmware (4.4.2) and DO NOT WIPE DATA. Your device will boot just fine as you now have stock KK kernel. Also use any of the methods on this forum like flashing CWM and then rootkit or TOWELROOT or CF-auto root. All work fine. GOOD LUCK.