In short, the 2005 Avalon is powered by a 3.5-liter V6 engine (the 2GR-FE), producing about 268 horsepower and 248 lb-ft of torque, paired with a 5-speed automatic transmission.
The 2005 Avalon marked a shift from the previous generation’s 3.0-liter V6 to a larger 3.5-liter V6. It uses a dual overhead camshaft design with 24 valves and Toyota's VVT-i, delivering smooth performance for the full-size sedan while maintaining Toyota’s emphasis on reliability and efficiency. The engine drives the front wheels through a conventional front-wheel-drive layout.
Engine specifications
Key technical details of the 2005 Avalon’s engine are listed below:
- Displacement: 3.5 liters (3456 cc)
- Engine family: 2GR-FE V6
- Configuration: Dual overhead camshafts (DOHC), 24 valves
- Valvetrain technology: Variable Valve Timing with intelligence (VVT-i)
- Power output: 268 horsepower at 6,200 rpm
- Torque: 248 lb-ft (336 Nm) at 4,700-4,800 rpm
- Fuel system: Sequential multi-port fuel injection
- Transmission: 5-speed automatic with overdrive
- Drivetrain: Front-wheel drive (FWD)
These specifications reflect the 2005 Avalon engine setup and its emphasis on refined power delivery for daily driving and highway cruising.
Engineering highlights
Beyond the numbers, the 2GR-FE in the Avalon benefits from a robust build, strong low- and mid-range torque, and modern engine management that supports smooth shifting and reliable performance for a full-size sedan.
Summary
The 2005 Toyota Avalon uses a 3.5-liter V6 engine (2GR-FE) producing around 268 hp and 248 lb-ft of torque, paired with a 5-speed automatic and front-wheel drive. This powertrain marked a meaningful upgrade from the prior generation, delivering solid highway performance while maintaining Toyota’s reputation for reliability.