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Lincoln 5.4 SOHC 3V specs: 330 ci (5.4L) 8-cylinder, 3.551 x 4.165 in (90.2 x 105.8 mm) bore and stroke, 9.8:1 compression. Rated 300 hp, 2005–2014.
The Lincoln 5.4 SOHC 3V is undersquare — the 4.1654" stroke exceeds the 3.5512" bore by 14.7% — a layout that trades peak RPM for leverage and torque low in the range. The 4.1654" stroke puts mean piston speed at 4,000 ft/min around 5,750 RPM, which is where a production bottom end is generally considered at its limit. A rod ratio of 1.598 is in the range most production engines fall in. Each of the 8 cylinders displaces 41.3 ci (676 cc).
9.8:1 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 15 engines in the Modular family, the largest at 330 ci. 10 factory variants share these dimensions, rated at 300 hp across 2005–2014.
| Displacement | 330 ci / 5.4 L |
|---|---|
| Bore | 3.5512" |
| Stroke | 4.1654" |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 9.8:1 |
| Rod length | 6.657" |
| Rod ratio | 1.598 |
| Bore/stroke ratio | 0.853 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | SOHC |
| Fuel type | gas |
| Firing order | 1-3-7-2-6-5-4-8 |
| Advertised HP | 300 hp |
| Years | 2005–2014 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2005 | net | 300 * | 365 lb-ft @ 3750 * | — |
| 2006 | net | 300 @ 5000 * | 365 lb-ft @ 3750 * | — |
| 2008 | net | 300 @ 5000 | 365 lb-ft @ 3750 | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 0.853 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 4,165 ft/min — in the range typical of performance street engines |
| Rod ratio | 1.598 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 41.3 ci |
| Static compression | 9.8:1 — 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 | 5.4 SOHC 3V |
| 2006 | 300 hp | 5.4 SOHC 3V |
| 2007 | 300 hp | 5.4 SOHC 3V |
| 2008 | 300 hp | 5.4 SOHC 3V |
| 2009 | — | 5.4 SOHC 3V |
| 2010 | — | 5.4 SOHC 3V |
| 2011 | — | 5.4 SOHC 3V |
| 2012 | — | 5.4 SOHC 3V |
| 2013 | — | 5.4 SOHC 3V |
| 2014 | — | 5.4 SOHC 3V |
1 factory vehicle, 2005–2014. Each year opens that model's engine table.