IS 350 V-6 HP?
The Lexus IS 350’s V-6 delivers about 311 horsepower in recent years; older models typically carried around 306 horsepower depending on year and market.
Engine and performance fundamentals
The IS 350 pairs a 3.5-liter V6 with an eight-speed automatic transmission. Here are the core performance figures for the current-generation model:
- Engine: 3.5-liter V6 (3.5L V6 with direct injection on newer variants)
- Horsepower: roughly 311 hp (engine output varies slightly by market and model year)
- Torque: about 280 lb-ft
- Transmission: 8-speed automatic (Toyota/Lexus-sourced)
- Drivetrain: rear-wheel drive standard; all-wheel drive available
- Acceleration: approximately 5.6 seconds to 60 mph in RWD versions; AWD is typically marginally slower
- Fuel economy: varies by drivetrain and year, generally in the mid-to-high 20s mpg combined for the modern IS 350
Note: horsepower figures are engine ratings and can differ by market, a result of differing emissions standards, tuning, and transmission choices. Real-world performance will vary with tire choice, weather, and vehicle condition.
Historical horsepower trajectory
To understand how the figure has evolved, here is a concise look at the IS 350’s V-6 output across different generations and markets. The values reflect typical US-specs and widely reported figures, with small variations by year and trim level.
- 2006–2013: about 306 hp (3.5-liter V6; torque near 277 lb-ft) with earlier six-speed transmissions
- 2014–2017: generally around 306 hp and 277 lb-ft, with the introduction of updated transmissions and revisions for efficiency
- 2018–present: about 311 hp and around 280 lb-ft, largely tied to newer direct-injected 3.5L V6 tuning and the eight-speed automatic
In short, the IS 350’s power output has hovered in the low 300s for many years, with a notable bump to about 311 hp in the latest iterations. Buyers should verify the exact figure for their specific model year and market, as ratings can differ slightly.
What this means for buyers and drivers
For prospective buyers, the horsepower figure translates to strong everyday acceleration and confident highway merging, especially when paired with the IS 350’s chassis and handling. If maximum straight-line speed is a priority, the newer 311-hp version provides a small edge over older 306-hp models, while the AWD option offers improved traction in adverse conditions at the cost of some efficiency and slight power variation.
Bottom line
Across its current generation, the Lexus IS 350 is powered by a 3.5-liter V6 that delivers roughly 311 horsepower, with earlier model years typically rated around 306 horsepower. The exact number can vary by market, transmission, and year, so checking the specific spec sheet for your vehicle is the most reliable approach.
Summary
In contemporary terms, the IS 350’s V-6 produces about 311 hp, a step up from earlier generations that clustered around 306 hp. The engine’s performance, combined with the eight-speed automatic and available rear- or all-wheel drive, defines the IS 350’s balanced blend of everyday usability and spirited acceleration. Always confirm the exact figure for your model year and market to be sure.
