See other engines in this family
The same engine also has a main page: Nissan VQ35HR.
Infiniti VQ35HR specs: 3.5L (213.6 ci) 6-cylinder, 95.5 x 81.4 mm (3.7598 x 3.2047 in) bore and stroke, 10.6:1 compression. Rated 306 hp, 2007–2008.
The Infiniti VQ35HR is oversquare — the 3.7598" bore exceeds the 3.2047" stroke by 17.3% — a layout that favors airflow and RPM over leverage at the crank. The 3.2047" stroke does not reach 4,000 ft/min of mean piston speed until about 7,500 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 35.6 ci (583 cc).
10.6:1 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.
It is one of 18 engines in the VQ family, sitting between the 121.9 ci and 243.9 ci members. 2 factory variants share these dimensions, rated at 306 hp across 2007–2008.
| Displacement | 213.6 ci / 3.5 L |
|---|---|
| Bore | 3.7598" |
| Stroke | 3.2047" |
| Cylinders | 6 |
| Configuration | V6 |
| Compression ratio | 10.6:1 |
| Bore/stroke ratio | 1.173 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Redline | 7,500 rpm (factory limit) |
| Advertised HP | 306 hp |
| Years | 2007–2008 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2007 | VQ35HR net | 306 @ 6800 | 268 lb-ft @ 4800 | 10.6:1 |
| 2008 | VQ35HR net | 306 @ 6800 | 268 lb-ft @ 4800 | 10.6:1 |
Factory specification sheet.
| Bore/stroke character | 1.173 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,205 ft/min — conservative for a street engine |
| Displacement per cylinder | 35.6 ci |
| Static compression | 10.6:1 — 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 |
|---|---|---|
| 2007 | 306 hp | VQ35HR |
| 2008 | 306 hp | VQ35HR |
2 factory vehicles, 2007–2009. Each year opens that model's engine table.