What HP is this?

#1
Okay, so today I stopped by someones house to check out these 2 3 wheelers sitting by his garage and had notice a huge engine that looked to be a briggs hiding under some old fenders for the 3 wheelers. He wasn't interested in selling the 3 wheeler but I did however ask about the engine and he gave it to me for free?!?!? It was indeed a Briggs & Stratton in perfect condition(was). It weighed a ton making me think it's made of cast iron. I compared it to a 5 horse I had laying in my truck bed and this engine is 3 times it! Unfortunately I was showing it off to my brother in law and forgot to shut the tail gate and it feel out on main street :doah::doah::doah: . It bruised the tank a little and bent the exhaust, nothing serious, the block is still in great shape!

Here's the model number:
23 203087 219522
 
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