Does the 2014 Civic Si have a K24?
Yes. The 2014 Honda Civic Si uses a 2.4-liter K-series engine, specifically the K24Z7 powerplant.
This article explains which engine powers the 2014 Civic Si, how it differs from earlier Si generations, and what that means for performance, maintenance, and ownership.
Engine details
The 2014 Civic Si is part of the ninth-generation Civic lineup. Honda moved from the 2.0-liter K20 platform used in earlier Si models to a larger 2.4-liter K-series engine for this generation, resulting in a different torque and rev-characteristic while preserving the NA, high-rev nature Si enthusiasts expect.
- Displacement: 2.4 L (K24Z7)
- Engine type: Inline-4, DOHC i-VTEC
- Power: Approximately 201 hp at around 7,000 rpm
- Torque: Approximately 170 lb-ft at around 4,400 rpm
- Transmission: 6-speed manual (no factory automatic Si option)
- Fuel system/valvetrain: i-VTEC with VTC, typically paired with Honda’s responsive NA delivery
Notable engine features include a high-rev NA design aimed at lively throttle response and a smooth, linear power band, especially in the upper rev range typical of Honda’s performance-focused NA engines.
Where the K24Z7 sits under the hood
The K24Z7 is mounted in the standard transverse layout used by front-wheel-drive Hondas of the era, with the intake manifold and exhaust routing arranged to optimize air flow and throttle response. The engine is typically paired exclusively with a 6-speed manual transmission in the Si, reinforcing the model’s enthusiast-oriented character.
How the 2014 Si’s engine compares to earlier Si engines
Before diving into the specifics, here’s a concise comparison to frame the changes from the prior generation’s powertrain.
- Displacement shift: From the 2.0 L K20 to the 2.4 L K24, increasing overall displacement and low- to mid-range torque.
- Power output: The K24Z7-based Si delivers roughly 201 hp, slightly higher than the earlier K20-based Si, though peak horsepower bands differ by model year and tuning.
- Torque delivery: The K24Z7 provides notably more torque (around 170 lb-ft) earlier in the rpm range, improving real-world responsiveness.
- Transmission: The Si in this generation relies on a 6-speed manual only, with no automatic option, preserving the driver-oriented character.
In short, the shift to the K24Z7 represented a move toward more mid-range torque and a broader power band, while preserving the NA, high-rev demeanor that defined the Civic Si across generations.
Maintenance and ownership implications
For prospective and current owners, the engine’s design has practical implications beyond raw numbers. The K24Z7 features a timing chain rather than a timing belt, reducing the risk of belt-related maintenance but still requiring periodic inspection. Routine maintenance like oil changes, air-filter replacement, and spark plug service remains similar in cadence to other Honda engines, with specific recommendations in the owner’s manual and service schedule.
Overall, the 2014 Civic Si’s K24Z7 powertrain offers a robust, rev-happy NA experience with stronger mid-range torque, retained manual-focused driving dynamics, and maintenance considerations that align with Honda’s reliability-focused engineering ethos.
Bottom line
The 2014 Civic Si does indeed use a K-series engine, specifically the 2.4-liter K24Z7. This engine marks a shift from the earlier K20-based Si powerplant while delivering a characteristic high-rev, naturally aspirated driving experience that enthusiasts expect from the Si badge. The combination of increased displacement, boosted torque, and a six-speed manual transmission defines the model’s performance profile for that year and generation.
Summary
In summary, the 2014 Honda Civic Si is powered by Honda’s 2.4-liter K-series engine, the K24Z7. This engine provides more torque and a broader power band compared with the previous K20-based Si, while maintaining the NA, driver-centric driving experience through a six-speed manual gearbox. For owners, the key considerations are typical of Honda NA engines-plus the maintenance implications of a timing chain and the desire for spirited, rev-happy performance.
Is K20 or K24 better?
Neither the K20 nor the K24 is inherently "better"; the choice depends on your goals. The K24 offers more torque and is better for daily driving due to its larger displacement, while the K20 is more "rev happy" and has higher peak horsepower potential at higher RPMs. A popular high-performance hybrid is combining a K24 block with a K20 cylinder head to gain the benefits of both.
K24
- Pros:
- More low-end torque and power, making it more driveable for daily use.
- Greater peak power potential due to its larger displacement.
- Often more affordable to acquire.
- Cons:
- Has a lower redline and is less "rev happy" than the K20.
- Some base models lack high-performance features like piston oil squirters and a high-flowing head, requiring modifications for maximum performance.
K20
- Pros:
- Has a higher revving nature and can produce more horsepower at higher RPMs.
- Smaller displacement makes it ideal for lightweight chassis.
- Cons:
- Lacks low-end torque compared to the K24.
- Can require more modifications to reach the power potential of a stock K24, especially for low-end torque.
Hybrid option
- K24 with K20 head: A common and effective build is to use a K24 block (for its displacement and torque) with a K20 head (for its higher revving characteristics and better airflow). This combination provides a good balance of both engines' strengths.
What K24 is in the 2014 Civic SI?
K24Z6: 2010-2014 Honda CR-V. K24Z7: 2012-2015 Honda Civic Si, 2013-2015 Acura ILX.
What engine is in a 2014 Civic SI?
The ninth-generation Civic Si was available as a coupe and as a sedan. It is powered by a new 2.4-litre K-Series (K24Z7) inline-four engine which has increased displacement through longer piston stroke than the K20Z3 from the eighth generation Civic Si, yet the K24Z7 retains the 11.0:1 compression used in the K20Z3.
Which Civic Si has the K24?
The ninth-generation Honda Civic Si (2012-2015) is the model that has the K24 engine, specifically the 2.4-liter K24Z7. Previous generations (like the 8th generation) came with a K20 engine but can be swapped with a K24, as shown in the YouTube video.
Ninth-generation Civic Si (2012-2015)
- Engine: 2.4-liter K24Z7
- Horsepower: 201 hp for 2012-2013 models, and 205 hp for 2014-2015 models
- Torque: 170 lb-ft for 2012-2013 models, and 174 lb-ft for 2014-2015 models
Other models with K24 engines
- Eighth-generation Civic Si (2006-2011): This generation originally came with a 2.0-liter K20 engine, but many enthusiasts perform engine swaps to replace it with the larger K24, often from another vehicle, such as the Honda Element or Acura TSX.
- Honda Element: This compact SUV was powered by the K24 engine from 2003 to 2011.
- Acura TSX: Some models, like the 2006-2008 TSX, came with the K24A2 engine, which is a popular donor engine for K24 swaps into other cars.
