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Lincoln Modular specs: 330 ci (5.4L) 8-cylinder, 3.551 x 4.165 in (90.2 x 105.8 mm) bore and stroke, 9:1 compression. Rated 230-260 hp. SOHC.
The Lincoln Modular 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. Each of the 8 cylinders displaces 41.3 ci (676 cc).
9:1 on aluminum heads is low by modern standards and generally happy on regular pump fuel.
It is one of 7 engines in the Modular family, the largest at 330 ci. 3 factory variants share these dimensions, rated from 230 to 260 hp. Factory fitments include the Lincoln Navigator, Lincoln Blackwood.
| Displacement | 330 ci / 5.4 L |
|---|---|
| Bore | 3.5512" |
| Stroke | 4.1654" |
| Cylinders | 8 |
| Compression ratio | 9:1 |
| Bore/stroke ratio | 0.853 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | SOHC |
| Fuel type | gas |
| Advertised HP | 230–260 hp |
| 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 |
| Displacement per cylinder | 41.3 ci |
| Static compression | 9:1 — 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 |
|---|---|---|
| — | 230 hp | 5.4L SOHC V8, 5.4L SOHC, 5.4 SOHC |
| — | 260 hp | 5.4 SOHC, 5.4L SOHC PI, 5.4L SOHC V8 PI, 5.4 SOHC PI |
| — | 260 hp | 5.4L SOHC |