Bottom Line Up Front
The K20 and K24 are both part of Honda’s reliable K-series, but the K24 makes a bit more torque and often gets better fuel mileage, while the K20 is known for high‑revving sportiness.
Honda K20 vs K24 Engine Differences – Power, Mileage, and Price Explained
Image: Honda K20 vs K24 Engine Differences – Power, Mileage, and Price Explained – Performance Comparison and Specifications
Design & Looks
Physically the two blocks look almost identical. Both share the same aluminum head, similar bore spacing, and a compact VTEC layout. The main visual cue is the cylinder head size – the K24’s head is slightly larger to accommodate a longer stroke. Inside, the K20 uses a 2.0‑liter displacement (2,000 cc) and the K24 a 2.4‑liter (2,400 cc). That extra 0.4 L is the only real size difference you’ll notice.
Performance & Mileage
Because of the larger displacement, the K24 typically produces more low‑end torque, which translates to smoother city driving and slightly better fuel economy under normal conditions. The K20, on the other hand, revs higher and is a favorite for track enthusiasts who love a punchy 200‑horsepower feel.
- K20: 200‑220 hp, 150‑180 Nm torque, ~30 mpg combined.
- K24: 210‑240 hp, 220‑260 Nm torque, ~32 mpg combined.
Price & Rivals
Both engines are found in a range of Honda models. The K20 powers the Civic Si, Type‑R, and older Integra sport trims, while the K24 lives under the Accord, CR‑V, and newer Civic models. Because the K24 is newer in many applications, it can carry a slightly higher price tag in the used market.
Quick Comparison Table
| Engine | Mileage | Price (Used) | Top Features |
| K20 | ~30 mpg | $3,500‑$5,000 | High rev, sport‑tuned VTEC, lightweight |
| K24 | ~32 mpg | $4,000‑$6,000 | More torque, better low‑end response, newer tech |
FAQ
What is the fuel mileage difference between the K20 and K24?
The K24 usually gets about 2 mpg more in combined driving because its larger displacement and newer tuning improve efficiency.
Is the K20 better for performance builds?
Yes. The K20’s high‑rev nature and strong aftermarket support make it a popular choice for racers and tuners.
Which engine is cheaper to maintain?
Both are Honda, so reliability is high. However, the K20’s simpler, older design can mean slightly lower parts costs.
Got more questions or personal experience with these engines? Drop a comment below – we love hearing from you!
Source: Read Official News
