The short answer: both. Classic Impalas and high-performance SS variants used V8 engines, while many later, non‑SS models relied on V6 power. In the last generation, Chevy offered a choice between a 2.5-liter four-cylinder and a 3.6-liter V6.
Engine options across generations
The following timeline outlines the main engine configurations that powered Impalas across generations.
- Classic and early modern era (roughly 1958-1970): V8 engines were the dominant choice for Impalas, including the high‑performance SS versions.
- 1994-1996 Impala SS: a dedicated high‑performance V8, the 5.7-liter LT1, shared with other GM performance models of the era.
- 2000s Impalas (non‑SS): V6 power was common in standard trims, with GM using larger V6 families to balance comfort and efficiency for family sedan buyers.
- 2014-2020 Impala: two engine options — a 2.5-liter four‑cylinder and a 3.6-liter V6 — giving buyers a choice between economy and stronger performance.
In summary, the Impala’s engine lineup tracks broader GM trends: V8 power in the classic and SS‑focused years, and a shift toward V6 power in mass‑market versions, with a two‑engine setup available in the final generation.
Notable Impala engines by model
Notable configurations tied to specific trims or generations help illustrate how the Impala has balanced power and efficiency over time.
- Impala SS (1994-1996): 5.7-liter V8 LT1
- Impala SS (2006-2009): 5.3-liter V8
- Standard Impala (2000s-2013): V6 engines (larger displacement V6 families typical for the era)
- Impala (2014-2020): 2.5-liter four‑cylinder or 3.6-liter V6
Prospective buyers and owners should check the specific engine listed on the vehicle's window sticker or VIN to confirm the exact configuration, especially when shopping for a used Impala where trim-level differences matter for performance and fuel economy.
Summary
Across its history, the Chevy Impala has been offered with both V8 and V6 engines. Early and performance-focused models leaned on V8 power, while most later, non‑SS versions used V6 power. The final generation combined a 2.5L four‑cylinder option with a 3.6L V6, and production of the Impala ended after the 2020 model year. If you’re evaluating an Impala today, the engine type is a key distinction that aligns with the model year and trim level.
Does the Impala have a V6?
It is important not only how good a car looks but how well it performs too; luckily the Impala packs plenty of power under the hood with options ranging from a 3.5L V6 engine up through a 5.3L V8 engine giving you plenty of options when choosing your ride!
What year to stay away from Chevy Impala?
- 2000 Chevrolet Impala. The 2000 variant is a troubled year with some serious mechanical issues.
- 2001 Chevrolet Impala. The 2001 model isn't better at all.
- 2002 Chevrolet Impala.
- 2003 Chevrolet Impala.
- 2004 Chevrolet Impala.
- 2005 Chevrolet Impala.
- 2006 Chevrolet Impala.
What Chevy car has a V8?
2025 Chevrolet Corvette
These days there are more Corvette variants than ever before, including the Stingray, E-Ray, Z06, ZR1 and the upcoming ZR1X, and all of them offer incredible V8 engines.
What engine does an Impala have?
The 3.6 liter V6 with variable valve timing is standard on the Premier and available on the LS and LT. This engine produces 305 horsepower and averages 28 mpg on the highway and 19 mpg in the city. If you need to stay connected when in your vehicle, the Chevrolet Impala makes that easily possible.