As I said, hilariously enough, it's the stock Intel cooler. My WC set up sprung a leak so I just slapped the old cooler on.
Once I have the WC set up running, I am hoping to raise the frequency even higher, while keeping the Vcore around 1.475.
I just took the highest Vcore at which temps are still more or less manageable. I prefer overclocking with the Vcore at it's max. Less trouble that way, I only have to worry about raising the frequencies. I decided to stop at 4.5 for now simply because it's 5:50am here, I have not slept as of yet and I do not want to make an error and end up crippling my rig.