From the looks of the block I have and the thread in a previous post, I have the new turbulators on mine and the side channels in the block are deeper than on previous batches of blocks. I was at Dannys shop and didn't see the three barb version.
I'm just giving my impression based on using a Maze3 for awhile and switching to the TC-4.
Now I did something real stupid and took back my Asus N7N8X board for an Abit NF-7S and it doesn't have the freaking four holes in the board to mount the block so I'm screwed..... I email dangerden to see if I can by that SHD hold down and will modify it to work with the TC-4.