OCZ HydroFlow HF-MK1

[overclockermad]

is this water block any good for a E8400 ?

can get one for £10

[Nebulous]

I would say it's not bad for the price. If you can get the Swiftech GTZ for the same price, get the GTZ instead.

[Spawn-Inc]

for that price it becomes a good block, but otherwise there are better ones out there.