The 2007 Civic EX is powered by a 1.8-liter inline-4 i-VTEC engine (Honda code R18A1), delivering about 140 horsepower and 128 lb-ft of torque. It pairs with either a 5-speed manual or a 5-speed automatic transmission.
Engine design and role in the lineup
Among the eighth-generation Civics launched for the 2006 model year, the 1.8L i-VTEC engine was carried across non-Si trims, including the EX. This setup offered a balance of everyday usability and responsiveness, positioned above the base models but distinct from the higher-performance Si variant.
Key specifications
The following bullets summarize the core specifications of the 2007 Civic EX engine.
- Engine type: 1.8-liter inline-4 with i-VTEC
- Engine code: R18A1
- Displacement: about 1,800 cc (1.8 L)
- Horsepower: about 140 hp
- Torque: about 128 lb-ft
- Configuration: DOHC, 4 valves per cylinder, VTEC on intake valves
- Fuel delivery: multi-point fuel injection
- Transmissions: 5-speed manual or 5-speed automatic
These specifications reflect a practical balance of performance, efficiency, and everyday reliability typical of the EX trim in that model year.
Additional context
In the Civic lineup, the EX uses the same 1.8-liter engine as other non-Si trims, but offers features, trim-level tuning, and drivetrain options that tailor it toward a more engaging driving experience than the base models. The Si variant, by contrast, uses a different engine entirely—a 2.0-liter i-VTEC K-series—not used in the EX.
Summary
The 2007 Civic EX relies on Honda's 1.8-liter inline-4 i-VTEC engine (R18A1), producing roughly 140 horsepower and 128 lb-ft of torque, paired with a 5-speed manual or 5-speed automatic transmission. This engine choice embodies Honda’s approach for mainstream Civics of that generation: dependable performance with solid efficiency.