Automotive giant General Motors has filed patents for a two-stroke engine of the type whose excess emissions took it off the road decades ago as a technology seen as having no future.The patent is for ...

GM modern two-stroke tech aims to revive lightweight, efficient combustion engines with a new patent using electronically controlled sliding ...

GM's Detroit Diesel division once made a two-stroke engine. A certain trait about this engine would lead to it getting the nickname of "Screaming Jimmy." ...

I wouldn't count on this singular patent bringing that ring-ding-ding sound to your local parking lot any time soon.

General Motors may not be building a bike engine, but this two-stroke concept has real potential for motorcycle engineering.

Now, General Motors (GM) has gone and filed a new patent application for... a two-stroke engine. The document explicitly mentions use in hybrid vehicles, immediately raising a question: Is GM ...

GM has filed a patent application for a two-stroke engine valve system. The patent application is tagged with patent number US 2025/0354528 A1 and was filed with the United States Patent and Trademark ...

All previous V3 engines through history have been two-stroke. Honda’s latest creation is a liquid-cooled four-stroke, with a ...

Our friends at Slavens Racing built their own YZ300X using a 2016 YZ250X as its starting point. And they gave us a chance to ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

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From a new V3 Honda engine to Toyota’s latest Hilux, these are the biggest stories in car news today.