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Nissan VQ40DE specs: 4.0L (241 ci) 6-cylinder, 95.5 x 92 mm (3.7598 x 3.6220 in) bore and stroke, 9.7:1 compression. Rated 261-265 hp, 2005–2019.
The Nissan VQ40DE is close to square: 3.7598" bore against 3.622" stroke, within 3.8%, which splits the difference between a high-revving layout and a torque layout. The 3.622" stroke puts mean piston speed at 4,000 ft/min around 6,650 RPM, which is where a production bottom end is generally considered at its limit. Each of the 6 cylinders displaces 40.2 ci (658 cc).
9.7:1 is in the range that usually runs on pump premium.
15 factory variants share these dimensions, rated from 261 to 265 hp across 2005–2019.
| Displacement | 241 ci / 4 L |
|---|---|
| Bore | 3.7598" |
| Stroke | 3.622" |
| Cylinders | 6 |
| Configuration | V6 |
| Compression ratio | 9.7:1 |
| Bore/stroke ratio | 1.038 |
| Fuel type | gas |
|---|---|
| Advertised HP | 261–265 hp |
| Years | 2005–2019 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2005 | VQ40DE net | 265 | 284 lb-ft | — |
| 2006 | VQ40DE net | 265 | 284 lb-ft | — |
| 2007 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2008 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2009 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2010 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2011 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2012 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2013 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2014 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2015 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2016 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2017 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2018 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
| 2019 | VQ40DE net | 261 @ 5600 | 281 lb-ft @ 4000 | 9.7:1 |
Factory specification sheet.
| Bore/stroke character | 1.038 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,622 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 40.2 ci |
| Static compression | 9.7:1 — 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 |
|---|---|---|
| 2005 | 265 hp | VQ40DE |
| 2006 | 265 hp | VQ40DE |
| 2007 | 261 hp | VQ40DE |
| 2008 | 261 hp | VQ40DE |
| 2009 | 261 hp | VQ40DE |
| 2010 | 261 hp | VQ40DE |
| 2011 | 261 hp | VQ40DE |
| 2012 | 261 hp | VQ40DE |
| 2013 | 261 hp | VQ40DE |
| 2014 | 261 hp | VQ40DE |
| 2015 | 261 hp | VQ40DE |
| 2016 | 261 hp | VQ40DE |
| 2017 | 261 hp | VQ40DE |
| 2018 | 261 hp | VQ40DE |
| 2019 | 261 hp | VQ40DE |
3 factory vehicles, 2005–2019. Each year opens that model's engine table.