The radiator can't fit in there w/o take off the HDD bays.
1)If you have one radiator you can install it one the Top. Like
http://www.rigged.de/wp-content/uploads/2014/09/thermaltake-core-v51-2.jpg
2)If you have two then like
http://www.hardwareluxx.de/images/stories/newsbilder/pmoosdorf/2014/thermaltake_core_v51_3.jpg and put the SSD/HDD in the back, like
http://www.topachat.com/boutique/img/in/in1008/in10083212/06.jpg but no more DVD drive, and you need use the USB drive for OS installation..
3)Or even you have one but you want install in the front, take the HDD bays off, put the radiator in, and install the SSD/HDD in the back. And you can't use the DVD drive anymore.