P atent documentation was recently published by the USPTO for a revolutionary new Ferrari engine showcasing oval- or ...

Their focus is on free piston engines as power sources for hybrid electric vehicles, something which due to their small size they seem ideally suited for. Perhaps the free piston engine has faced ...

Ferrari has filed a patent for an engine with pill-shaped pistons, a radical departure from traditional circular piston ...

But it also means that mixing the fuel and air can be tricky, which is why diesel engines have specially-shaped pistons. A diesel engine's piston head looks like someone took a scoop out of the top.

Why not just rebuild a junkyard 400, one of the biggest small-block ... 0:1 compression ratio pistons, and a hydraulic roller camshaft are all included in the complete engine build.