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Toyota 3MZ-FE specs: 3.3L (202 ci) 6-cylinder, 92 x 83 mm (3.6220 x 3.2677 in) bore and stroke, 10.8:1 compression. Rated 210-270 hp, 2004–2010.
The Toyota 3MZ-FE is oversquare — the 3.622" bore exceeds the 3.2677" stroke by 10.8% — a layout that favors airflow and RPM over leverage at the crank. The 3.2677" stroke does not reach 4,000 ft/min of mean piston speed until about 7,350 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 33.7 ci (552 cc).
10.8:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
12 factory variants share these dimensions, rated from 210 to 270 hp across 2004–2010.
| Displacement | 202 ci / 3.3 L |
|---|---|
| Bore | 3.622" |
| Stroke | 3.2677" |
| Cylinders | 6 |
| Configuration | V6 |
| Compression ratio | 10.8:1 |
| Bore/stroke ratio | 1.108 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 210–270 hp |
| Years | 2004–2010 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2004 | 3MZ-FE net | 225 @ 5600 | 240 lb-ft @ 3600 | — |
| 2004 | 3MZ-FE net | 230 @ 5600 | 242 lb-ft @ 3600 | — |
| 2005 | 3MZ-FE net | 225 @ 5600 | 240 lb-ft @ 3600 | — |
| 2005 | 3MZ-FE net | 230 @ 5600 | 242 lb-ft @ 3600 | — |
| 2006 | 3MZ-FE net | 210 @ 5600 | 220 lb-ft @ 3600 | — |
| 2006 | 3MZ-FE net | 268 | — | — |
| 2007 | 3MZ-FE net | 215 @ 5600 | 222 lb-ft @ 3600 | — |
| 2007 | 3MZ-FE net | 268 | — | — |
Factory specification sheet.
| Bore/stroke character | 1.108 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,268 ft/min — conservative for a street engine |
| Displacement per cylinder | 33.7 ci |
| Static compression | 10.8:1 — 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 |
|---|---|---|
| 2004 | 225 hp | 3MZ-FE |
| 2004 | 230 hp | 3MZ-FE |
| 2005 | 225 hp | 3MZ-FE |
| 2005 | 230 hp | 3MZ-FE |
| 2006 | 210 hp | 3MZ-FE |
| 2006 | 215 hp | 3MZ-FE |
| 2006 | 268 hp | 3MZ-FE |
| 2007 | 215 hp | 3MZ-FE |
| 2007 | 268 hp | 3MZ-FE |
| 2008 | 270 hp | 3MZ-FE |
| 2009 | 270 hp | 3MZ-FE |
| 2010 | 270 hp | 3MZ-FE |
5 factory vehicles, 2004–2010. Each year opens that model's engine table.