mahad mirza :
n0ns3ns3 :
technically - yes, there is a block.
practically, sell your card and use the money for the block to get GTX 1070 or GTX 1080 - much more benefit than water cooling.
Thing is no one wants a 980 lmfao
980 is ~ GTX 1060/RX 480 performance level. so rationally the price supposed to be up to ~150$ if you want to sell it fast.
the block OCD mentioned is EOL - you will have hard time to find one new. There is small chance to find used one without the card. the cost is ~130$ + backplate ~30$.
so do your best to sell the card, slapping a waterblock on it is wasted money. you get few more FPS (usually 2-3) and the only real benefit is less noise.