Cooling Recommend me a cooler

Stock will do that

 

I guessed it would by I want it to be running cool so I can have it as an exhaust

 

You'll be well served by H40, H55, H60 or H80i then. All of those will cope admirably with a 4.2 overclock when used as an exhaust.

Get the H80i if you don't have a fan controller so that you can tweak the fan speeds as you please.

 

The H40 has an aluminium cold plate, you are better served by a copper one.

I found this, it doesn't have all the models but it is shows some of them clearly:

 

Your looking at a degree or two at most with the copper plate. If your not pushing high voltage then save the money for something else. Its more than capable

 

Just bought the H55, thanks for all of your help guys, +rep all round.