Mercury 2.5L I4 Specs
Mercury 2.5L I4 engine specs: 152 ci (2.5L), 4-cylinder, 3.5039" bore x 3.937" stroke, 9.7:1 compression.
Dimensions
| Displacement | 152 ci / 2.5 L |
|---|
| Bore | 3.5039" |
|---|
| Stroke | 3.937" |
|---|
| Cylinders | 4 |
|---|
| Compression ratio | 9.7:1 |
|---|
| Bore/stroke ratio | 0.89 |
|---|
Construction
| Block material | aluminum |
|---|
| Head material | aluminum |
|---|
| Valvetrain | DOHC |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 175 hp |
|---|
What these numbers mean
| Bore/stroke character | 0.890 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|
| Mean piston speed at 6,000 RPM | 3,937 ft/min — in the range typical of performance street engines |
|---|
| Displacement per cylinder | 38.0 ci |
|---|
| Static compression | 9.7:1 — in the range that usually runs on pump premium |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|
| — | 175 hp | 2.5L I4 |
| — | 175 hp | 2.5L Duratec 25, Duratec 25, 2.5L Duratec, 2.5 I4, 2.5L, 2.5L I4 |
Vehicles (4)
- Mercury Milan
- Mercury Mariner
- Milan
- Mariner
Similar engines
← All Duratec engines