Its defo the right dizzy, my dub is a mk2 8v with a 2.0l botom end conversion, and i purchased it off someone on. Here, who also had it on an 8v with a 2.0 bottom.
An almost new dizzy with a 1000 miles on it.
It does rotate, i wouldnt say freely when done by hand. To be honest i have checked if its rotating whilst i turn the engine over!