Welcome to the wonderful world of custom water cooling loops!
I built my first custom loop about a decade ago and fell in love with this aspect of modding. The entire process from planning to shopping to building to testing is for whatever reason very exciting to me!
The first question I would have for you is in your post you ask about "closed loop custom". I just want to clarify that you probably meant an open loop system. A closed loop would be an AIO type system that does not need to be filled.
The second important question is what exactly are your delta goals? There is a ton of information that you may need to research in order to determine the best parts for your new custom loop. I see you listed your specs but what exactly do you plan on cooling within the loop? What is the noise level you are looking for and what delta temps are you trying to achieve on the parts within your loop. What is the build being used for, such as for gaming, multi tasking, or professional type work? Were you looking at dual loops or one loop? What is the noise level that you are looking for and have you researched the clearance area for your radiators + fans? Do you plan on overclocking any of the components in your loop? Have you drawn out a basic plan of how you would like your loop to run? Are you planning on lighting effects on your blocks or res? Did you have a res in mind (as far as bay style or cylinder)? Did you mean rigid, flexible, or copper tubing and what size?
These are all very important questions that vary greatly depending on each builders needs and goals. I would love to help you pick some parts but I would first recommend researching everything you can about delta temps and custom loop building.
http://www.tomshardware.com/forum/277130-29-read-first-watercooling-sticky And i'm saying this with all due respect, it will save you money in the long run. A custom loop can be very costly, but if it's something you enjoy you can carry over your parts to other builds and save on components by doing the research. I made many mistakes in my first build that cost me a few extra hundred dollars in the long run. Had I researched more effectively I would have better planned my build for exactly what "I" was looking for and not made my custom loop based on what others had done in their rigs. (especially when you look at show builds that are meant mostly to look amazing but aren't always logical when you are paying with your own money.
I can tell you that the EK blocks work great with low pressure pumps and the rads would depend on the noise level you are searching for. The fittings from EK are all basic g1/4 fittings but the type of fitting would depend on the angle of your blocks positioned and where those tubes are running to. You can use the config tool on the EK size to make sure your blocks and/or backplate fits your specific card.
However, if you aren't willing to do a ton of research and rather go with a plug and play option you may want to look at the hybrid kits that EVGA sells. Those AIO kits I have heard are great for a simple and cheap alternative to custom loops when they are in stock.
post edited by representtexas - 2015/07/29 21:12:41