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Lincoln Modular 4.6 SOHC 2V specs: 281 ci (4.6L) 8-cylinder, 3.551 x 3.543 in (90.2 x 90 mm) bore and stroke, 9.38:1 compression. Rated 200-239 hp, 1998–2011.
The Lincoln Modular 4.6 SOHC 2V is close to square: 3.5512" bore against 3.5433" stroke, within 0.2%, which splits the difference between a high-revving layout and a torque layout. The 3.5433" 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. A rod ratio of 1.674 is in the range most production engines fall in. Each of the 8 cylinders displaces 35.1 ci (576 cc).
9.38:1 on aluminum heads is low by modern standards and generally happy on regular pump fuel.
It is one of 15 engines in the Modular family, the smallest at 281 ci. 14 factory variants share these dimensions, rated from 200 to 239 hp across 1998–2011.
| Displacement | 281 ci / 4.6 L |
|---|---|
| Bore | 3.5512" |
| Stroke | 3.5433" |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 9.38:1 * |
| Rod length | 5.933" |
| Rod ratio | 1.674 |
| Bore/stroke ratio | 1.002 |
| Deck height | 8.937" |
* Compression ratio from a single source; not yet cross-verified.
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | SOHC |
| Fuel type | gas |
| Firing order | 1-3-7-2-6-5-4-8 |
| Advertised HP | 200–239 hp |
| Years | 1998–2011 |
| Engine weight | 473–600 lb (approximate; published figures vary with what is attached) |
| Piston-to-wall clearance (factory service manual spec, 1999-2004 Mustang GT 4.6 2V) | -0.0002–0.0010" |
|---|---|
| Ring end gap (factory service manual spec, 1999-2004 Mustang GT 4.6 2V) | top 0.005–0.011", second 0.012–0.022", oil 0.006–0.026" |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2006 | net | 239 @ 4900 * | 287 lb-ft @ 4100 * | 9.38:1 * |
| 2009 | net | 239 @ 4900 | 287 lb-ft @ 4100 | — |
| 2010 | net | 239 @ 4900 | 287 lb-ft @ 4100 | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 1.002 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,543 ft/min — in the range typical of performance street engines |
| Rod ratio | 1.674 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 35.1 ci |
| Static compression | 9.38:1 — 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 |
|---|---|---|
| 1998 | 205 hp | Modular 4.6 SOHC 2V |
| 1999 | 205 hp | Modular 4.6 SOHC 2V |
| 2000 | 200 hp | Modular 4.6 SOHC 2V |
| 2001 | 220 hp | Modular 4.6 SOHC 2V |
| 2002 | 220 hp | Modular 4.6 SOHC 2V |
| 2003 | 239 hp | Modular 4.6 SOHC 2V |
| 2004 | 239 hp | Modular 4.6 SOHC 2V |
| 2005 | 239 hp | Modular 4.6 SOHC 2V |
| 2006 | 239 hp | Modular 4.6 SOHC 2V |
| 2007 | 239 hp | Modular 4.6 SOHC 2V |
| 2008 | 239 hp | Modular 4.6 SOHC 2V |
| 2009 | 239 hp | Modular 4.6 SOHC 2V |
| 2010 | 239 hp | Modular 4.6 SOHC 2V |
| 2011 | 239 hp | Modular 4.6 SOHC 2V |
1 factory vehicle, 1998–2011. Each year opens that model's engine table.