Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...

This engine has a total of eight cylinders, each with a bore of 4 inches and a stroke ... simply adding bigger pistons and a crankshaft. How the increase in stroke impacts the position of the ...

Golen produces special Chevy and muscle car era engines, but perhaps the most unique offering is the 4.6-liter Jeep stroker ...

The phrase "Atkinson cycle" is as synonymous with hybrids as the words "Toyota" and "Prius". But what does that even mean and ...

This means that instead of producing power only once every four strokes, the new design would generate power every third stroke, which significantly improves the engine’s efficiency. Porsche’s patent ...

Ford is giving its F-Series Super Duty trucks some upgrades for 2015, and we're happy to say that one of them is an improved Power Stroke ... forces on the crankshaft when the engine is performing ...

The longer crankshaft stroke increases the engine's displacement. In the case of the 4.6L Jeep stroker engine, the extra stroke gained 0.6-liter over the stock 4.0L inline six-cylinder ...