Each cylinder of the Wärtsilä 14RT-flex96C displaces ... While the Wärtsilä 14RT-flex96C is indeed the world's largest piston engine, there are also other contenders for that award on road ...

The area of the pistons, how far they travel in the cylinder, and the number of cylinders all come together to tell us how much air the engine is capable of displacing. Ready for some math?

In the video after the break, [Brick Technology] uses LEGO to gain some practical insight into the world of piston engine design, from single-cylinder all the way up to radial twelve-cylinder engines.

The valve for one of the cylinders has its guide exposed, which isn't something you should be seeing. Plus, there's a hunk of piston at the bottom of the engine when the timing cover comes off.

Fromm explains that in a conventional engine, there is a piston which goes back and forth in a cylinder. But in an opposed-piston engine, every cylinder has two pistons that come together.