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Land Rover 278ci (1996–2004) specs: 4.6L (278 ci) 8-cylinder, 94 x 82 mm (3.7008 x 3.2283 in) bore and stroke, 9.35:1 compression. Built 1996–2004.
The Land Rover 278ci (1996–2004) is oversquare — the 3.7008" bore exceeds the 3.2283" stroke by 14.6% — 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 8 cylinders displaces 34.8 ci (569 cc).
9.35:1 is low by modern standards and generally happy on regular pump fuel.
9 factory variants share these dimensions across 1996–2004.
| Displacement | 278 ci / 4.6 L |
|---|---|
| Bore | 3.7008" * |
| Stroke | 3.2283" * |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 9.35:1 * |
| Bore/stroke ratio | 1.146 |
* Bore, stroke and compression ratio from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Years | 1996–2004 |
| Bore/stroke character | 1.146 — 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 | 34.8 ci |
| Static compression | 9.35:1 — low by modern standards, generally happy on regular pump fuel |
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 |
|---|---|---|
| 1996 | — | — |
| 1997 | — | — |
| 1998 | — | — |
| 1999 | — | — |
| 2000 | — | — |
| 2001 | — | — |
| 2002 | — | — |
| 2003 | — | — |
| 2004 | — | — |
2 factory vehicles, 1996–2004. Each year opens that model's engine table.