There should be room for the larger coolers. I worry when I see the cooling setup like it is in the picture. The radiator is turned the wrong way! The inlet and outlet lines should be at the bottom so that the pump cannot become airbound. I saw a review where purchaser was complaining of grinding noises...bet that's why. Air will collect at the top of the radiator and if the suction to the pump is at the top, the pump sucks air. By design the cooling system manufacturers leave a small amount of air in the system to prevent overpressure dur to heat up-that air collects ay the high point and will get sucked into the pump with this setup. Turn the radiator around so that the pump lines are at the bottom.