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Honda F20C specs: 2.0L (121.9 ci) 4-cylinder, 87 x 84 mm (3.4252 x 3.3071 in) bore and stroke, 11:1 compression. Rated 240 hp, 2000–2003.
The Honda F20C is close to square: 3.4252" bore against 3.3071" stroke, within 3.6%, which splits the difference between a high-revving layout and a torque layout. The 3.3071" stroke does not reach 4,000 ft/min of mean piston speed until about 7,250 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 30.5 ci (499 cc).
11:1 on aluminum heads is high enough that pump premium or better is normally required.
It is one of 3 engines in the Honda 122ci family, the smallest at 121.9 ci. 4 factory variants share these dimensions, rated at 240 hp across 2000–2003.
| Displacement | 121.9 ci / 2 L |
|---|---|
| Bore | 3.4252" |
| Stroke | 3.3071" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 11:1 |
| Bore/stroke ratio | 1.036 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Firing order | 1-3-4-2 |
| Advertised HP | 240 hp |
| Years | 2000–2003 |
| Piston-to-wall clearance (factory service manual spec, F20C 2000-2003) | 0.0002–0.0011" |
|---|---|
| Ring end gap (factory service manual spec, F20C 2000-2003) | top 0.010–0.014", second 0.024–0.030", oil 0.008–0.028" |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2000 | F20C net | 240 @ 8300 | 153 lb-ft @ 7500 | 11:1 |
| 2001 | F20C net | 240 @ 8300 | 153 lb-ft @ 7500 | 11:1 |
| 2002 | F20C net | 240 @ 8300 | 153 lb-ft @ 7500 | 11:1 |
| 2003 | F20C net | 240 @ 8300 | 153 lb-ft @ 7500 | 11:1 |
Factory specification sheet.
| Bore/stroke character | 1.036 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,307 ft/min — conservative for a street engine |
| Displacement per cylinder | 30.5 ci |
| Static compression | 11:1 — high enough that pump premium or better is normally required |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2000 | 240 hp | F20C |
| 2001 | 240 hp | F20C |
| 2002 | 240 hp | F20C |
| 2003 | 240 hp | F20C |
1 factory vehicle, 2000–2003. Each year opens that model's engine table.