The Colorado ZR2 currently delivers 308 horsepower and 275 lb-ft of torque from its 3.6-liter V6, paired with an 8-speed automatic transmission.
This article breaks down the official power figures for the ZR2, notes how ratings have varied across model years, and explains how a diesel option on other Colorado trims compares.
Power figures at a glance
Notes: the numbers below reflect the gasoline V6 specification used in the ZR2 and how ratings can vary slightly depending on year and measurement standard.
Gasoline engine: 3.6L V6 in the Colorado ZR2
The modern Colorado ZR2 uses a 3.6L V6 rated at 308 horsepower and 275 pound-feet of torque. This engine is typically paired with an 8-speed automatic transmission and four-wheel drive tuned for off-road use.
Power and torque snapshots for quick reference:
- Current/most recent figures: 308 hp, 275 lb-ft (3.6L V6, 8-speed automatic)
- Earlier or alternate ratings (year-to-year variations due to SAE methods): roughly 305 hp, 269 lb-ft
Note: A diesel option exists on other Colorado trims. The 2.8L Duramax turbo-diesel delivers about 181 hp and 369 lb-ft of torque, but it is not offered on the ZR2.
Diesel option and comparison to other Colorado trims
The Duramax 2.8L turbo-diesel is available on non-ZR2 Colorado models, providing strong low-end torque and improved towing efficiency. For ZR2 buyers focused on off-road capability, the gasoline 3.6L V6 remains the standard powertrain.
Conclusion: The ZR2’s power profile centers on a robust 3.6L V6 with high-end horsepower and strong torque tuned for off-road performance, rather than the diesel’s emphasis on efficiency and low-end torque in other trims.
Summary: The Chevrolet Colorado ZR2 currently uses a 3.6L V6 producing 308 hp and 275 lb-ft of torque, mated to an 8-speed automatic. Earlier ratings varied slightly due to different SAE measurement methods, and while a Duramax diesel exists for other Colorado trims (181 hp, 369 lb-ft), it is not offered in the ZR2. The key takeaway is a powerful gasoline setup designed for rugged off-road capability.