I’ve rebuilt a couple of engines during my time as a car guy and I have to say that I find it really fun. It’s probably because I can be a very details oriented person. Everything is precision machined, all the parts are clean and have a designated place to go and every fastener is perfectly matched for its job and torque spec. It’s an immensely complex piece of machinery that you get to put together from the ground up. That’s why I like posting these “engine porn” videos. The How It’s Made show got access to the Ferrari factory in Maranello to bring us this footage their high performance engines being produced. My favorite part is at the beginning where they sand cast the heads. It’s not a process you get to see very often even though pretty much everybody uses aluminum heads made like this.