I think I found my gateway to understanding combustion engines. I'm getting one! Ty for the video.I wish someone would invent a huge version pf one of these. Could you imagine the potential?!I personally think that the pistons are the cutest thing in the whole package.Wow this is incredible! I have seen metal engine model kits but they are only for display, this one actually works like the real thing. I am amazed! Thank you for building it up!These are so well machined. Looks nicer than some real engines.