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Mitsubishi 6G72 SOHC 24v specs: 3.0L (183 ci) 6-cylinder, 91.1 x 76 mm (3.5866 x 2.9921 in) bore and stroke. Rated 177-195 hp, 1995–2003.
The Mitsubishi 6G72 SOHC 24v 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 30.5 ci (500 cc).
It is one of 3 engines in the Mitsubishi 183ci family, all of them 183 ci — the differences between them are in compression, heads and rating, not displacement. 7 factory variants share these dimensions, rated from 177 to 195 hp across 1995–2003.
| Displacement | 183 ci / 3 L |
|---|---|
| Bore | 3.5866" |
| Stroke | 2.9921" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.199 |
| Fuel type | gas |
|---|---|
| Firing order | 1-2-3-4-5-6 |
| Advertised HP | 177–195 hp |
| Years | 1995–2003 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2000 | 6G72 net | 195 @ 5500 | 205 lb-ft @ 4000 | — |
| 2001 | 6G72 net | 195 @ 5500 | 205 lb-ft @ 4000 | — |
| 2002 | 6G72 net | 195 @ 5500 | 205 lb-ft @ 4000 | — |
| 2003 | 6G72 net | 195 @ 5500 | 205 lb-ft @ 4000 | — |
Factory specification sheet.
| 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 | 30.5 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 |
|---|---|---|
| 1995 | 177 hp | 6G72 SOHC 24v |
| 1996 | — | 6G72 SOHC 24v |
| 1999 | 195 hp | 6G72 SOHC 24v |
| 2000 | 195 hp | 6G72 SOHC 24v |
| 2001 | 195 hp | 6G72 SOHC 24v |
| 2002 | 195 hp | 6G72 SOHC 24v |
| 2003 | 195 hp | 6G72 SOHC 24v |
2 factory vehicles, 1995–2003. Each year opens that model's engine table.