Pontiac 145ci specs: 3.465 x 3.858 in (88 x 98 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 145 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.465" |
| Stroke | 3.858" |
| Compression | 10.4:1 |
| Advertised power | 177 hp |
| Years | 2006 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Pontiac 145ci (2006) · 177 hp | 145 ci | 3.465" × 3.858" | 10.4:1 | 177 |
This family is represented by a single engine in the database: 145 ci, 4 cylinders, a 3.465" × 3.858" bore and stroke.
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.