Around 370 horsepower is typical for the 2010 5.7 Hemi in most Dodge passenger models; Ram pickups used about 390 hp.
The 5.7-liter Hemi is a V8 used across several Dodge and Ram vehicles in 2010, and the official horsepower rating varies by model. This article breaks down the common figures and explains why numbers can differ.
Horsepower by model (2010)
Here is a quick breakdown of the common official horsepower figures for the 5.7L Hemi in the 2010 model year. Note that actual output can vary with the car's options, exhaust, and testing method used by the publication.
- Dodge Challenger R/T (5.7L Hemi): typically about 370 horsepower (official rating around 370; some sources list 372 hp).
- Dodge Charger R/T (5.7L Hemi): typically about 370 horsepower (official rating around 370; some sources list 372 hp).
- Ram 1500 pickup (5.7L Hemi): about 390 horsepower (official rating around 390 hp).
In practice, the 5.7L Hemi is most commonly reported as delivering roughly 370 horsepower in cars, with Ram trucks offering a higher 390 horsepower rating due to different tuning and market positioning. The engine also features variable valve timing and, in many configurations, cylinder deactivation (MDS) to balance power and efficiency.
Additional details
Engine output is governed by multiple factors, including exhaust system, air intake, and emissions equipment. The 2010 Hemi also used the Multidisplacement System (MDS) in many applications to deactivate cylinders at light load, which can slightly alter the horsepower you see on the odometer depending on driving conditions and test method.
Why numbers vary
Horsepower numbers can differ due to measurement standards (SAE net vs. gross), testing conditions, and the vehicle’s configuration. Manufacturers publish the official SAE net horsepower, while some third-party tests report higher numbers using different measurement setups.
Summary
The 2010 5.7L Hemi generally produced around 370 horsepower in most Dodge passenger models, with Ram 1500 pickups offering about 390 horsepower. For precise figures, refer to the official brochure for the exact model and trim, as ratings can vary by market and calibration.