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 HEMI has been through several generations, in a slew of different cars since it first appeared on the automotive scene in 1951.

If you're at a Ram dealership and asking, "That thang got a HEMI?" odds are, that thang does. A year ago, that likely wasn't the case.

The sub-brands of Stellantis — formerly the Chrysler Corporation, including nameplates like Dodge, Jeep, Fiat and Ram — have spent 2025 emphasizing the HEMI, returning the long-storied V-8 engine to its 1500 light-duty truck class, as well as making the HEMI standard on all Dodge Durangos, the company's hallmark large SUV. Even Jeep h

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