Bore, stroke, displacement and compression for all 16 Ford Modular engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 281–415 ci |
|---|---|
| Cylinders | 8, 10 |
| Bore | 3.551" |
| Stroke | 3.543–4.165" |
| Compression | 8.4–9.8:1 |
| Advertised power | 190–500 hp |
| Years | 1997–2010 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 6.8L 2V SOHC | 415 ci | 3.5512" × 4.1654" | 9:1 | 275 |
| 6.8L 3V SOHC | 415 ci | 3.5512" × 4.1654" | 9.2:1 | 362 |
| 6.8L SOHC 2-valve Triton V10 | 415 ci | 3.5512" × 4.1654" | — | 275–310 |
| 6.8L SOHC 3-valve Triton V10 | 415 ci | 3.5512" × 4.1654" | — | 362 |
| 5.4L 2V SOHC | 330 ci | 3.5512" × 4.1654" | 9:1 | 235 |
| 5.4L 4V DOHC Supercharged Shelby | 330 ci | 3.5512" × 4.1654" | 8.4:1 | 500 |
| 54 2V Sohc PI | 330 ci | 3.5512" × 4.1654" | 9.8:1 | 300 |
| Triton 5.4 SOHC 2V | 330 ci | 3.5512" × 4.1654" | — | 230–260 |
| Triton 2V SOHC | 330 ci | 3.5512" × 4.1654" | — | 235–260 |
| SVT Triton SC | 330 ci | 3.5512" × 4.1654" | — | 360 |
| 5.4L SOHC 2-valve Triton | 330 ci | 3.5512" × 4.1654" | — | — |
| 4.6L 2V SOHC | 281 ci | 3.5512" × 3.5433" | 9:1 | 190 |
| 4.6L 2V SOHC PI | 281 ci | 3.5512" × 3.5433" | 9.4:1 | 215 |
| 4.6L 4V DOHC Supercharged | 281 ci | 3.5512" × 3.5433" | 8.5:1 | 390 |
| 4.6L 4V DOHC Lincoln | 281 ci | 3.5512" × 3.5433" | 9.8:1 | 280 |
| 46 4V Dohc Cobra | 281 ci | 3.5512" × 3.5433" | 9.85:1 | 305 |
Every engine here shares a 3.5512" bore; displacement varies by stroke alone, which is the signature of a family built on one block with different cranks.
11 of 16 are undersquare — stroke larger than bore, favouring torque low in the range.
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.