Bore, stroke, displacement and compression for all 24 Ford EcoBoost engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 61–213.4 ci |
|---|---|
| Cylinders | 3, 4, 6 |
| Bore | 2.831–3.642" |
| Stroke | 3.008–3.701" |
| Compression | 9.3–11.0:1 |
| Advertised power | 100–450 hp |
| Years | 2011–2026 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Cyclone | 213.4 ci | 3.6417" × 3.4134" | 10:1 | 365 |
| EcoBoost · 3.642" × 3.413" · 10.5:1 | 213.4 ci | 3.6417" × 3.4134" | 10.5:1 | 375–450 |
| EcoBoost 3.5 | 213.4 ci | 3.6417" × 3.4134" | — | 365–400 |
| EcoBoost 3.5 High Output | 213.4 ci | 3.6417" × 3.4134" | — | 400–440 |
| 3.5L Ti-VCT | 213.4 ci | 3.6417" × 3.4134" | — | 282 |
| 3.5L EcoBoost | 213.4 ci | 3.6417" × 3.4134" | — | 365–400 |
| 3.5L EcoBoost High Output | 213.4 ci | 3.6417" × 3.4134" | — | 450 |
| 3.5L PowerBoost | 213.4 ci | 3.6417" × 3.4134" | — | 430 |
| Nano | 183 ci | 3.3583" × 3.3858" | 10.5:1 | 400 |
| 3.0L EcoBoost V6 | 183 ci | 3.3583" × 3.3858" | — | 418 |
| EcoBoost 3.0 | 183 ci | 3.3583" × 3.3858" | — | 365–400 |
| EcoBoost V6 | 183 ci | 3.3583" × 3.3858" | — | 405 |
| Nano | 164.8 ci | 3.2677" × 3.2717" | 10.3:1 | 325 |
| SCTi | 140 ci | 3.4449" × 3.7008" | 9.4:1 | 310–350 |
| 2.3L EcoBoost I4 | 140 ci | 3.4449" × 3.7008" | — | 300 |
| EcoBoost 2.3 | 140 ci | 3.4449" × 3.7008" | — | 280–300 |
| EcoBoost I4 | 140 ci | 3.4449" × 3.7008" | — | 270 |
| SCTi | 122 ci | 3.4449" × 3.2717" | 9.3:1 | 200–240 |
| SCTi Gen2 | 122 ci | 3.4449" × 3.2717" | 9.7:1 | 245 |
| EcoBoost 2.0 | 122 ci | 3.4449" × 3.2717" | — | 240 |
| SCTi | 97.6 ci | 3.1102" × 3.2047" | 10:1 | 150–200 |
| Dragon | 91.5 ci | 3.3071" × 3.5433" | 11:1 | 150–200 |
| SCTi | 91.5 ci | 3.1102" × 3.0079" | 10:1 | 160 |
| Fox | 61 ci | 2.8307" × 3.2283" | 10:1 | 100–140 |
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
Compression spans 9.3:1 to 11:1, so fuel requirements differ meaningfully between members — worth checking before assuming parts interchange.
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.