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Dodge World Engine 1.8 specs: 110 ci (1.8L) 4-cylinder, 3.386 x 3.047 in (86 x 77.4 mm) bore and stroke, 10.5:1 compression. Rated 148 hp, 2007–2009.
The Dodge World Engine 1.8 is oversquare — the 3.3858" bore exceeds the 3.0472" stroke by 11.1% — a layout that favors airflow and RPM over leverage at the crank. The 3.0472" stroke does not reach 4,000 ft/min of mean piston speed until about 7,900 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 27.5 ci (451 cc).
10.5:1 is in the range that usually runs on pump premium.
3 factory variants share these dimensions, rated at 148 hp across 2007–2009.
| Displacement | 110 ci / 1.8 L |
|---|---|
| Bore | 3.3858" * |
| Stroke | 3.0472" * |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 1.111 |
* Bore and stroke from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Redline | 6,750 rpm (factory limit) |
| Advertised HP | 148 hp |
| Years | 2007–2009 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2007 | net | 148 @ 6500 | 125 lb-ft @ 5200 | 10.5:1 |
| 2008 | net | 148 @ 6500 | 125 lb-ft @ 5200 | 10.5:1 |
| 2009 | net | 148 @ 6500 | 125 lb-ft @ 5200 | 10.5:1 |
Factory specification sheet.
| Bore/stroke character | 1.111 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,047 ft/min — conservative for a street engine |
| Displacement per cylinder | 27.5 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 |
|---|---|---|
| 2007 | 148 hp | World Engine 1.8 |
| 2008 | 148 hp | World Engine 1.8 |
| 2009 | 148 hp | World Engine 1.8 |
1 factory vehicle, 2007–2009. Each year opens that model's engine table.