"Looks like" a GM 6-71 Blower. It was a very commonly found diesel engine blower decades ago. You would be surprised at how many types of gas engines over the years have had racers bolt one on to, and that style of blower comes in several different sizes, which makes it even more popular. You just have to build an intake manifold that will adapt the blower to the specific engine you want it on, and then decide how much you want to spend on a fuel system for it.
Here's an example of two or three blowers! Well, two that I know of! Ha!