Which company produces the iconic “Hemi” engine used in drag racing? Chrysler produces the engine family commonly known as the Hemi.
“Hemi” refers to a hemispherical combustion chamber, a design that places the valves on opposing sides of the chamber and can improve airflow and combustion efficiency. Chrysler made the layout famous through its Hemi V8 engines, especially the high-performance engines associated with Dodge and Plymouth muscle cars and racing programs.
The first-generation Chrysler Hemi was introduced for the 1951 model year under the FirePower name. Later versions, including the legendary 426 Hemi introduced for 1964, became closely associated with American performance. The 426 Hemi powered celebrated muscle cars and was also adapted for competition, including drag racing.
Pontiac, Chevrolet, and Ford have all produced powerful racing engines, but none is the manufacturer identified with the “Hemi” name in this context. Modern drag-racing Hemi-based engines are highly specialized and may be built or modified by racing teams and engine companies, yet Chrysler remains the company behind the iconic design and brand.