Think your muscle car has a huge engine? You haven't seen anything yet. This is the largest piston engine ever made and the ...

This Hemi just erupted on the dyno at Nick's Garage. It came apart at 6,300 RPM, which should be well within its rev range.

Piston engines rely on oxygen to efficiently burn fuel, but as you fly higher, there's less oxygen in the air. Most piston-engined aircraft would have difficulty flying at airliner altitudes.

Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the case, and it's all about performance.

A piston engine can suck in its own air and then compress it 10-20x (gas vs diesel, to the nearest multiple of ten) with plenty of leftover energy after the fuel is burned to drive the crank or an ...

Legal troubles for GM engines continue as a settlement is reached in a lawsuit regarding oil overconsumption in the 5.3L V8 ...

No wonder today's OEM engines have thinner piston rings than their predecessors. Think about a 1972 Camaro and its 350ci small-block, which had a piston ring pack with two 5/64-inch rings and a 3/ ...

GM's L92 V8 is built to last, but a teardown reveals a recurring flaw that can turn this tough engine into scrap metal.

That engine went from being used for 16.30 hours per day on the Cat pistons to 18.34 hours per day on the SoA pistons by the time it was removed for servicing once more in 2017 after 915 days in ...

In a free piston engine, combustion happens the same way, but there is no crankshaft. On the face of it, this seems crazy, as the pistons are just left rattling around in their cylinders.

The liquid piston engine is not a Wankel and is more akin to an inside-out Wankel. The seals are on the housing, not the rotor itself, and there are three “chambers” instead of two.

Despite having four cylinder banks, the INNengine (depending on its configuration) actually has eight pistons. This is because the engine is an opposed-piston motor, meaning that each piston’s ...