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Lincoln EcoBoost specs: 183 ci (3.0L) 6-cylinder, 3.358 x 3.386 in (85.3 x 86 mm) bore and stroke, 10.5:1 compression. Rated 400-494 hp. DOHC.
The Lincoln EcoBoost is close to square: 3.3583" bore against 3.3858" stroke, within 0.8%, which splits the difference between a high-revving layout and a torque layout. The 3.3858" stroke does not reach 4,000 ft/min of mean piston speed until about 7,100 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 30.5 ci (500 cc).
10.5:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
It is one of 10 engines in the EcoBoost family, sitting between the 122 ci and 213 ci members. 2 factory variants share these dimensions, rated from 400 to 494 hp. Factory fitments include the Lincoln Aviator Grand Touring, Lincoln Continental, Lincoln MKZ and 4 others.
| Displacement | 183 ci / 3 L |
|---|---|
| Bore | 3.3583" |
| Stroke | 3.3858" |
| Cylinders | 6 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.992 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 400–494 hp |
| Bore/stroke character | 0.992 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,386 ft/min — conservative for a street engine |
| Displacement per cylinder | 30.5 ci |
| Static compression | 10.5:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| — | 400 hp | 3.0L EcoBoost V6, 3.0L EcoBoost, 3.0 V6, 3.0L Nano, 3.0L V6, 3.0 EcoBoost |
| — | 494 hp | 3.0 EcoBoost PHEV, 3.0L EcoBoost V6 PHEV, 3.0L EcoBoost PHEV, 3.0 V6 PHEV, 3.0L EcoBoost Hybrid, 3.0L EcoBoost V6 Hybrid |