Looks like the inlet/outlet of the block is same height as the vid card itself. Think that would make it very difficult to do SLI.
I'm going by this for making the grooves for o-rings
basically @70% of o-ring diameter for depth and @1.2% for width so that when the top compresses down on the o-ring material, it'll have enough height to form the seal and enough channel width to expand out into once compressed...otherwise you get a gap.
Mcmaster-carr and other places sell o-ring cord stock, which is just a spool of o-ring in whatever diameter, durometer and tpe you choose. I think we use pretty soft material for watercooling, so probably 50 for hardness ( I think the one n my kit is 70...which will take more pressure to compress)...but I am just guessing. I went with a "make your own o-ring" kit, which was just a jig, a razor blade, super glue and some o-ring cords. The jig may prove useful for making straight cuts, but other then that, probably better off buying just the spool of o-ring and super glue at a store.
I would have no problems using a self made glued together o-ring for a block to compress down on for the seal, but I would not use it for barbs..cause it twist down as it compressesEdited by Herc130 - 8/2/09 at 1:27pm