Bore, stroke, displacement and compression for all 4 Infiniti VR engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 182.9–213 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.386" |
| Stroke | 3.386–3.898" |
| Compression | 10.3–10.5:1 |
| Advertised power | 300–450 hp |
| Years | 2023–2026 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| VR35DDTT | 213 ci | 3.3858" × 3.8976" | 10.5:1 | 450 |
| VR30DDTT | 183 ci | 3.3858" × 3.3858" | 10.3:1 | 300–400 |
| VR30DDTT | 183 ci | 3.3858" × 3.3858" | — | 400–420 |
| VR30DDTT | 182.9 ci | 3.3858" × 3.3858" | 10.3:1 | 300–400 |
Every engine here shares a 3.3858" bore; displacement varies by stroke alone, which is the signature of a family built on one block with different cranks.
1 of 4 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.