The Hemi name is so tightly welded to Chrysler that it is easy to forget the combustion chamber shape itself is not proprietary hardware. While the company turned the hemispherical head into a ...

Chrysler may have trademarked HEMI, but the Detroit carmaker did not invent hemispherical engines, which appear in numerous cars from Europe and the U.S.

The 1960s are littered with a plethora of high-performance powerplants, often with overlapping names and terms. The 426 is a victim of such naming conventions, with two prominent engines boasting the ...