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Mitsubishi 6G72 specs: 3.0L (181 ci) 6-cylinder, 91.1 x 76 mm (3.5866 x 2.9921 in) bore and stroke. Rated 200-210 hp, 2000–2005.
The Mitsubishi 6G72 is oversquare — the 3.5866" bore exceeds the 2.9921" stroke by 19.9% — a layout that favors airflow and RPM over leverage at the crank. The 2.9921" stroke does not reach 4,000 ft/min of mean piston speed until about 8,000 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 30.2 ci (494 cc).
It is one of 6 engines in the Cyclone family, the smallest at 181 ci. 9 factory variants share these dimensions, rated from 200 to 210 hp across 2000–2005.
| Displacement | 181 ci / 3 L |
|---|---|
| Bore | 3.5866" |
| Stroke | 2.9921" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.199 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 200–210 hp |
| Years | 2000–2005 |
| Bore/stroke character | 1.199 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 2,992 ft/min — conservative for a street engine |
| Displacement per cylinder | 30.2 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 |
|---|---|---|
| 2000 | 205 hp | 6G72 |
| 2001 | — | 6G72 |
| 2002 | 200 hp | 6G72 |
| 2003 | 200 hp | 6G72 |
| 2003 | 210 hp | 6G72 |
| 2004 | 200 hp | 6G72 |
| 2004 | 210 hp | 6G72 |
| 2005 | 200 hp | 6G72 |
| 2005 | 210 hp | 6G72 |