I don't know what the horsepower rating would be, Doc.......but I'd be surprised if it was any more than a horse and a half. I'd guesstimate the weight to be over 40 pounds with the frame it's mounted on. I'm not sure if the frame is an original part from the washing machine application...or if someone made the frame mount to use it for some other application. You know, I don't think it would take much to get her running. It turns over nicely and seems to have good compression. I didn't look at the spark yet, but I can sorta hear a snap snap sound when I trun it over...so I think it's got spark, but is arcing in the spark plug cap area. It might only need some fresh gas and a new plug to fire up. I might have to take a closer look at it someday. I just have way too many projects on the go right now. I had a similar one with a kickstarter that I sold on ebay last year. It was seized up, but I think it still went for around seventy bucks, so I guess the collectors are a bit nutz for these things...specially since the shipping was as much or more than the engine.
Pete