How much horsepower does a 8.3 L V10 Viper have?
About 510 horsepower, depending on the model year and testing method. The 8.3-liter V10 powering the Dodge Viper SRT-10 produced roughly this output in its peak form (primarily the 2003–2006 period), helping cement the Viper's reputation for raw straight-line performance.
The question sits at the intersection of automotive history and measurement standards. The 8.3 L V10 was a key evolution within the Viper lineup, balancing aggressive power with lightweight design. This article details the official numbers for that engine and places them in the broader context of the Viper’s development timeline.
Engine specifications at a glance
Below are the commonly cited specifications for the 8.3 L V10 used in the US-market Viper SRT-10 during its peak years. They reflect the specifications most often referenced by automakers and automotive press for that generation.
- Power: 510 horsepower (SAE net) at 5,600 rpm
- Torque: 525 lb-ft of torque (713 N·m) at 4,400 rpm
- Displacement: 8.3 liters (507–508 cu in)
- Configuration: naturally aspirated V10, aluminum block and heads
- Years: 2003–2006 Dodge Viper SRT-10 (8.3 L V10)
These figures represent the standard US-spec output for the 8.3 L V10 era, with slight year-to-year variations possible due to emissions controls, testing procedures, and specific model configurations. The central takeaway is that the engine consistently delivered a bit over 500 hp in its era.
Context and evolution
Following the 8.3 L phase, the Viper lineup moved to a larger 8.4 L V10 for later generations, which enabled a significant horsepower jump into the around-600-horsepower range in the years that followed. The 8.3 L V10 is widely remembered for its punchy response and role in bridging the original Viper concept with the higher-performance iterations that came later.
Summary
The 8.3 L V10 in the Dodge Viper SRT-10 is commonly cited at about 510 horsepower in its peak configuration, with torque around 525 lb-ft. This level of output, achieved in the 2003–2006 period, contributed to the Viper's reputation as a purpose-built, track-capable American sports car. It sits between the earlier 8.0 L V10 era and the later 8.4 L engines that lifted horsepower even further in subsequent years.
