The 2005 Honda Accord EX primarily used a 2.4-liter inline-4 i-VTEC engine, with a 3.0-liter V6 available on higher-end variants. In everyday terms, EX models most commonly came with the 4-cylinder, while buyers seeking more power could opt for the V6 in the EX-V6 lineup.
Engine options for the 2005 Accord
For the North American market, Honda offered two main engine choices across the 2005 Accord lineup. The following bullets summarize these options and the trims in which they appeared.
- 2.4-liter inline-4 i-VTEC engine (4-cylinder)
- 3.0-liter V6 engine (V6, J-series)
In summary, the EX with the standard configuration was the 2.4-liter i-VTEC four-cylinder, while the more powerful 3.0-liter V6 was available on the EX-V6 variant and related trims.
2.4-liter inline-4 i-VTEC
The 2.4-liter engine used in most 2005 Accord EX models is a single, straightforward inline-4 with Honda’s i-VTEC variable valve timing. It typically produced about 166 horsepower and roughly 160 lb-ft of torque, depending on the exact sub-trim and transmission. This engine could be paired with either a 5-speed manual or a 5-speed automatic transmission, and it emphasized balanced performance and efficiency for daily driving.
3.0-liter V6
The 3.0-liter V6 (the J-series) was available on the EX-V6 and related higher-end trims. It delivered noticeably more power, typically around 244 horsepower and about 211 lb-ft of torque, and was paired with a 5-speed automatic transmission. This engine was aimed at buyers seeking stronger acceleration and smoother highway performance, at the cost of lower fuel economy compared to the 4-cylinder setup.
Summary
For the 2005 Honda Accord EX, the standard engine was the 2.4-liter inline-4 i-VTEC, with the 3.0-liter V6 available on the EX-V6 variant. If you’re checking a particular car, verify the sub-trim and original window sticker to confirm which engine it has, as configurations can vary by market and model year.


