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Toyota 3VZ-E specs: 3.0L (180.5 ci) 6-cylinder, 87.5 x 82 mm (3.4449 x 3.2283 in) bore and stroke. Rated 145-150 hp, 1988–1995. Used in the Toyota 4Runner.
The Toyota 3VZ-E is oversquare — the 3.4449" bore exceeds the 3.2283" stroke by 6.7% — a layout that favors airflow and RPM over leverage at the crank. The 3.2283" stroke does not reach 4,000 ft/min of mean piston speed until about 7,450 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 30.1 ci (493 cc).
It is one of 2 engines in the 3VZ family, all of them 180.5 ci — the differences between them are in compression, heads and rating, not displacement. 10 factory variants share these dimensions, rated from 145 to 150 hp across 1988–1995.
| Displacement | 180.5 ci / 3 L |
|---|---|
| Bore | 3.4449" |
| Stroke | 3.2283" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.067 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | SOHC |
| Fuel type | gas |
| Advertised HP | 145–150 hp |
| Years | 1988–1995 |
| Bore/stroke character | 1.067 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,228 ft/min — conservative for a street engine |
| Displacement per cylinder | 30.1 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 |
|---|---|---|
| 1988 | 145 hp | 3VZ-E |
| 1988 | 150 hp | 3VZ-E |
| 1989 | — | 3VZ-E |
| 1989 | 150 hp | 3VZ-E |
| 1990 | 150 hp | 3VZ-E |
| 1991 | 150 hp | 3VZ-E |
| 1992 | 150 hp | 3VZ-E |
| 1993 | 150 hp | 3VZ-E |
| 1994 | 150 hp | 3VZ-E |
| 1995 | 150 hp | 3VZ-E |