The Hemispherical combustion chamber brings big power, but is that all there is to the iconic Hemi engine?

While a lot of automotive engines have one spark plug per cylinder, the HEMI V8 might have two per cylinder. What is the science behind that?

Hemi engines aren't perfect. Sorry. Half-grapefruit-shaped combustion chambers sure do let designers increase valve sizes, and in the larger displacement Hemis, these valves could probably pass golf ...

Though they're the only engines officially named after their hemispherical combustion chambers, Chrysler's legendary V8s aren't the only mass-produced automotive engines to feature this technology.

The history of the first Hemi engine from Dodge is pretty straightforward, but it turns out that the tale behind the first engines with hemispherical combustion chambers requires going down a much ...

The term Hemi used to be synonymous with performance, and Ford's new 1.6-liter 4-banger may soon renew that association compound valve hemispherical (cvh) engine The Ford Compound Valve Hemispherical ...

The HEMI engine is named after the engine's hemispherical shaped piston heads. While Chrysler brands popularized and trademarked the name, HEMI-style engines were developed in the early 1900s. The ...

In gearhead terminology, the word hemi refers to the generally hemispherical shape of an engine's cylinder head combustion chamber. In the truest sense of the word, no automobile engine actually has a ...

Based on the bones of Chrysler’s first-generation Hemi engine from 1951 to 1958, HOT ROD had a pretty good sense that the new version from 1964 was going to kick ass. Don’t get too excited, fellows, ...

The Chrysler HEMI is as American as engines get, but the U.S. doesn't have a monopoly on the hemi. Automakers from other nations have built hemis too.