The pushrod engine is literally a century-old design, giving way to more modern turbocharged ones. But pushrods can still ...

Most of the major automakers around the globe moved on to the likes of dual overhead cams, variable valve timing, and multi-cylinder complexity decades ago. There is a brand which refused to let go of ...

When you think about it, everything in the valvetrain between the camshaft and the valve is little more than a high-tech telephone line. All the parts and pieces-the springs, the retainers, the ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its next generation of pushrod engines. The application, published by the U.S.

Correctly viewed, a pushrod engine's valvetrain assembly stands at the gateway of improved power. It is not a collection of components only intended to time and provide the correct valve motion.

Cale has spent the last year as a contributer for South Africa's leading motoring magazine, and writing for CARmag.co.za. After completing his Higher Certificate in Film at the SAE Institute, he ...

The Evolution Big Twin-engined motorcycles like Fat Boys and Road Kings spent 18 years using a single four-lobed camshaft, while the Sportster's Evolution motor — and its ancestors like the K-model ...