Bore, stroke, displacement and compression for all 7 Lincoln Modular engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 281–330 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.551–4.000" |
| Stroke | 3.000–4.165" |
| Compression | 9.0–10.0:1 |
| Advertised power | 130–310 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Modular · 3.551" × 4.165" · 9:1 | 330 ci | 3.5512" × 4.1654" | 9:1 | 230–260 |
| Modular · 3.551" × 4.165" · 9.8:1 | 330 ci | 3.5512" × 4.1654" | 9.8:1 | 300–310 |
| 54 Modular Dohc V8 4V | 330 ci | 3.5512" × 4.1654" | 10:1 | 310 |
| Modular · 4.000" × 3.000" · 9:1 | 302 ci | 4" × 3" | 9:1 | 130–150 |
| 4.6 SOHC | 281 ci | 3.5512" × 3.5433" | 9:1 | 190 |
| Modular · 3.551" × 3.543" · 9.4:1 | 281 ci | 3.5512" × 3.5433" | 9.4:1 | 205–239 |
| Modular · 3.551" × 3.543" · 9.8:1 | 281 ci | 3.5512" × 3.5433" | 9.8:1 | 224–300 |
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
The family mixes oversquare and undersquare designs, so members behave quite differently despite sharing a name.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.