The Koolance CPU-360 has a really attractive design. I try to stick to the objective aspects of blocks in my reviews, but occasionally I feel strongly enough about something subjective to speak up about it. This is a case of that; the simple design and two-tone finish work really well together. Apart from just looks, the CPU-360 has a few other things going for it as well.
All the parts are either stainless steel or nickel-plated copper or brass, so there’s little reason to worry about tarnish or rust anywhere on the block. The microchannels are, to the naked eye, pretty similar to EK Supreme HF and Heatkiller 3.0 LT/Cu, which is a very promising sign (however, there are some key differences between the three designs that are critical to performance). The injection plate is removable and inexpensive brass blanks can be purchased for tinkerers. The spacing between the inlet and outlet is large enough to accommodate the 1/2″ID-3/4″OD Koolance and Bitspower compression fittings. And it should be mentioned again that the mounting system is significantly better than the Supreme HF’s and the Heatkiller’s. Additionally, you can swap mounting plates without having to disassemble the block. The base is polished to a mirror finish and is very slightly bowed when the block is assembled.
Take off the bottom four hex screws and you get access to the injection plate and the great microchannel base. While almost everything on this block is flawless, I do have to take issue with the screws used for the base. They’re the same kind as what’s used in the Heatkillers and some Enzotech blocks and to put it bluntly, they suck. The heads strip after only a few uses and finding replacements isn’t easy. Koolance is aware of how easily they strip and is looking at various options for improving the situation–whether that’s including a set of backup screws or sourcing a Torx variety is yet to be seen. If you do have an issue with the screws, going to a smaller local hardware store is probably the fastest way to find new ones (large chains like Lowes and Home Depot do not carry metric machine screws this small). If you can’t find any there, I’m sure Koolance would be happy to help you out.