Is the Lexus GS 350 V6 or V8?
The Lexus GS 350 uses a 3.5-liter V6 engine. It does not use a V8. Historically, the GS lineup included V8-powered variants, but the GS 350 itself is a V6.
Engine at a glance
The Lexus GS 350 is powered by a 3.5-liter V6 that has been paired with an 8-speed automatic transmission in most model years. In recent releases, the engine delivers roughly 311 horsepower and around 280 lb-ft of torque, though exact figures can vary slightly by year and market. The powerplant features modern technologies such as variable valve timing and direct injection in later iterations.
Note on horsepower numbers by year
horsepower figures for the GS 350 have varied modestly across generations, but expect roughly a 311-horsepower output in the later years with torque near 280 lb-ft. Always check the specific specs for your exact model year and market.
Historical context: V8 variants
Earlier generations of the Lexus GS offered V8 power, notably in models such as the GS 430. Those V8 variants were phased out as Lexus shifted toward efficient V6 powertrains for the GS line. The current GS 350 designation, however, denotes the V6 configuration.
Market status today
In the United States, Lexus ended the GS lineup after the 2020 model year, meaning new GS 350s are no longer sold there. Globally, the model has appeared in various markets with different engine options over the years, but the current emphasis has shifted away from the GS in favor of other Lexus sedans and crossovers.
What to know if you're shopping for a used GS 350
If you're evaluating a used GS 350, understanding the engine type and potential maintenance needs is important. The following points guide a quick assessment of what to look for in a used model.
- The GS 350 is a V6, not a V8; confirm the engine sound and performance feel like a V6 during a test drive.
- Ensure the transmission shifts smoothly; late-model examples should shift cleanly with no hesitation or slipping.
- Review maintenance history for cooling and oil services, as a well-kept cooling system and regular oil changes help preserve long-term reliability.
- Inspect the exhaust, suspension, and brakes for typical wear on a luxury mid-size sedan with several years of usage.
Thorough pre-purchase inspection by a qualified technician is recommended to avoid surprises and confirm the condition of the engine, transmission, and major systems.
Summary
Bottom line: The Lexus GS 350 runs on a 3.5-liter V6. V8 variants existed in earlier GS generations, but the GS 350 itself is not a V8. While the new-car GS model has largely disappeared from the U.S. market since 2020, the used market remains the primary option for those seeking a GS 350 in North America. For those seeking V8 power, other Lexus models from different generations would be the path to explore.
