Jeep Hurricane specs: 3.307 x 3.543 in (84 x 90 mm) bore and stroke, shared by all 4 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 122–183 ci |
|---|---|
| Cylinders | 4, 6 |
| Bore | 3.307" |
| Stroke | 3.543" |
| Compression | 10.0–10.4:1 |
| Advertised power | 270–420 hp |
| Years | 2018–2026 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 30 Hurricane SO | 183 ci | 3.3071" × 3.5433" | 10.4:1 | 420 |
| Hurricane · 3.307" × 3.543" · 10:1 | 122 ci | 3.3071" × 3.5433" | 10:1 | 270–375 |
| GME-T4 | 122 ci | 3.3071" × 3.5433" | — | 270 |
| Hurricane 4 Turbo | 122 ci | 3.3071" × 3.5433" | — | 324 |
All 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.