The 2003 Honda Accord EX could be equipped with two engines: a 2.4-liter inline-4 i‑VTEC, or, in EX V6 variants, a 3.0-liter V6. Most EX models shipped with the four-cylinder, while the V6 option appeared on EX V6 trims.
Engine options for the 2003 Accord EX
Below are the two available powertrains, with quick specs and what you can expect in terms of performance and drive.
Four-cylinder option: 2.4-liter inline-4 i-VTEC
Key specifications and notes:
- Displacement: 2.4 liters
- Configuration: inline-4
- Valvetrain: i-VTEC (Honda's variable valve timing and lift system)
- Power: approximately 160 horsepower
- Torque: about 160 lb-ft
- Transmission options: typically paired with a 5-speed manual or a 4-speed automatic, depending on market and model year
In everyday driving, this engine offers a balance of efficiency and reliable performance, and it became the standard powertrain for most EX models in the United States.
V6 option: 3.0-liter V6
Key specifications and notes:
- Displacement: 3.0 liters
- Configuration: V6
- Power: around 240 horsepower
- Torque: about 212 lb-ft
- Transmission options: typically matched with a 5-speed automatic, with some manual transmissions in early or specific market versions
The V6-powered EX variants offered stronger acceleration and higher resale value, but with lower fuel economy compared with the four-cylinder model.
Summary
- Two engine options were available for the 2003 Accord EX: a 2.4 L inline-4 i-VTEC and a 3.0 L V6 in EX V6 models.
- The 4-cylinder engine delivered roughly 160 hp and 160 lb-ft of torque.
- The V6 engine delivered roughly 240 hp and 212 lb-ft of torque.
- Transmission choices varied by market and year, generally including manual or automatic options.