block needed ! help !

ok, well im a noob here, and i got me a hardware issue i need sorting ! i have built my own system in a zalman H1 case, and i have watercooled it, but, when i went to fit my cooling block onto my gpu, i found it didnt fit !, so atm im watercooling the cpu only, it has a 240 rad cooling it, i have a 2nd 240 installed, ready to cool the gpu as and when i can find the right block. the gpu i need to find a block for is an Asus Geforce GTX 770 Direct CUII OC (2gb) (the block i did buy that does not fit is an EK-FC770GTX (OriginalCSQ) Nickel Plexi ). . . . please someone find me a block !!! (pref acrylic) as im going doo-lally trying to find one and the more i look at things the more im loosing the will to live !!! thanks guys !!

What prevents your present block from fitting? Do the mounting holes not line up? Are there electronic components on the PCB that are interfering? Can you be more specific?

I suppose you've probably seen this: http://www.coolingconfigurator.com/step1_complist?gpu_gpus=1056

Looks like you bought a block for a reference pcb and you have a GPU with a custom pcb.

Go to the link Trents gave, it has the correct block.