The Chrysler Hemi is a series of high-performance engines produced by Chrysler. Known for its distinctive hemispherical combustion chamber design, the Hemi engine allows for better airflow and increased power output. This design has made it popular in various Chrysler vehicles, particularly in muscle cars and trucks. First introduced in the 1950s, the Hemi engine has undergone several updates and variations over the years. It is often associated with the Dodge brand, which is part of the Chrysler family, and has become a symbol of American automotive performance. The Hemi continues to be a key feature in modern Chrysler and Dodge vehicles.