Well its not 12 ounces but it is exactly 9 ounces lighter. The Rhino does have a FOD screen (forgot to remove it) but my point is that the KingTech is substantially lighter when comparing the same class engine with its required valves.

Also included is a picture comparing from Left to Right, 180G, 170G, 140G. The 170G and 180G are the same weight. The 140G is 1oz lighter and a bit shorter as the photo shows. I love these new engines.