Chevrolet 235ci specs: 3.563 x 3.938 in (90.5 x 100 mm) bore and stroke, shared by all 7 versions. Displacement, compression and factory ratings.
| Displacement | 235 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.563" |
| Stroke | 3.938" |
| Compression | 7.5–8.3:1 |
| Advertised power | 105–155 hp |
| Years | 1950–1962 |
| Cylinder head data | 3 of 7 engines |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Thriftmaster 235 | 235 ci | 3.563" × 3.938" | — | 112 |
| with Powerglide | 235 ci | 3.563" × 3.938" | — | 105–125 |
| Chevrolet 235ci (1953–1962) | 235 ci | 3.563" × 3.938" | — | 108–155 |
| Blue Flame 136 | 235 ci | 3.563" × 3.938" | — | 136 |
| Chevrolet 235ci · 3.563" × 3.938" · 7.5:1 | 235 ci | 3.563" × 3.938" | 7.5:1 | 123 |
| Chevrolet 235ci · 3.563" × 3.938" · 8:1 | 235 ci | 3.563" × 3.938" | 8:1 | 140 |
| Chevrolet 235ci · 3.563" × 3.938" · 8.25:1 | 235 ci | 3.563" × 3.938" | 8.25:1 | 135–145 |
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.