It appears to be patterned after this one.

http://www.amazon.com/OTC-1726A-Capacity-Engine-Stand/dp/B002YKTW4O

They are much more stable than the 3 leg things.

I use one of these.

http://www.amazon.com/OTC-1735B-Heavy-Duty-Motor-Rotor-Repair/dp/B00ILVNOG2


It was designed to grab engines from the side and it works very well on my Y-Blocks. When I do a GMC, I bolt on to the back of the motor as well as the front. I think an adapter for the front can be built for the one you are looking at. It is really nice working on an engine that is supported on either 2 sides or both ends.