The ones I've got here are red in color and NIB with the part number on the package. No other markings are on them other than Kenne-Bell and they're 1.6 ratio. If you're aren't makred then I'd presume that they're the same.
well - the ones I have are also red anodized and new(still in pkging)but not in original box. I had heard that he only done 1.6 ratio, but wanted to ask and be sure.so know I can try to get final lift on my cam.
The red ones I have a bushed instead of having roller bearings in them. Much heavier duty than the roller design from what I've read, but prone to more wear to some degree.