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Mitsubishi 6G74 DOHC specs: 3.5L (214 ci) 6-cylinder, 93 x 85.8 mm (3.6614 x 3.3780 in) bore and stroke. Built 1994–1996. Used in the Mitsubishi Montero.
The Mitsubishi 6G74 DOHC is oversquare — the 3.6614" bore exceeds the 3.378" stroke by 8.4% — a layout that favors airflow and RPM over leverage at the crank. The 3.378" 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 35.7 ci (584 cc).
It is one of 2 engines in the Mitsubishi 214ci family, all of them 214 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions across 1994–1996.
| Displacement | 214 ci / 3.5 L |
|---|---|
| Bore | 3.6614" |
| Stroke | 3.378" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.084 |
| Fuel type | gas |
|---|---|
| Firing order | 1-2-3-4-5-6 |
| Years | 1994–1996 |
| Bore/stroke character | 1.084 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,378 ft/min — conservative for a street engine |
| Displacement per cylinder | 35.7 ci |
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 |
|---|---|---|
| 1994 | — | 6G74 DOHC |
| 1995 | — | 6G74 DOHC |
| 1996 | — | 6G74 DOHC |
1 factory vehicle, 1994–1996. Each year opens that model's engine table.