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Land Rover AJ-V8 specs: 4.4L (268 ci) 8-cylinder, 88 x 90.3 mm (3.4646 x 3.5551 in) bore and stroke, 10.5:1 compression. Rated 300-305 hp, 2005–2009.
The Land Rover AJ-V8 is close to square: 3.4646" bore against 3.5551" stroke, within 2.5%, which splits the difference between a high-revving layout and a torque layout. The 3.5551" stroke puts mean piston speed at 4,000 ft/min around 6,750 RPM, which is where a production bottom end is generally considered at its limit. Each of the 8 cylinders displaces 33.5 ci (549 cc).
10.5:1 is in the range that usually runs on pump premium.
It is one of 4 engines in the Land Rover 268ci family, all of them 268 ci — the differences between them are in compression, heads and rating, not displacement. 9 factory variants share these dimensions, rated from 300 to 305 hp across 2005–2009.
| Displacement | 268 ci / 4.4 L |
|---|---|
| Bore | 3.4646" |
| Stroke | 3.5551" |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.975 |
| Fuel type | gas |
|---|---|
| Advertised HP | 300–305 hp |
| Years | 2005–2009 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2006 | AJ-V8 net | 300 | — | — |
| 2007 | AJ-V8 net | 300 | — | — |
| 2008 | AJ-V8 net | 300 | — | — |
| 2009 | AJ-V8 net | 300 | — | — |
| 2009 | AJ-V8 net | 305 @ 5750 | 325 lb-ft @ 4000 | 10.5:1 |
Factory specification sheet.
| Bore/stroke character | 0.975 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,555 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 33.5 ci |
| Static compression | 10.5:1 — 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 | 300 hp | AJ-V8 |
| 2006 | 300 hp | AJ-V8 |
| 2006 | 305 hp | AJ-V8 |
| 2007 | 300 hp | AJ-V8 |
| 2007 | 305 hp | AJ-V8 |
| 2008 | 300 hp | AJ-V8 |
| 2008 | 305 hp | AJ-V8 |
| 2009 | 300 hp | AJ-V8 |
| 2009 | 305 hp | AJ-V8 |
2 factory vehicles, 2005–2009. Each year opens that model's engine table.