GMC 98ci specs: 3.138 x 3.154 in (79.7 x 80.1 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 98 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.138" |
| Stroke | 3.154" |
| Years | 2018–2019 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LH7 | 98 ci | 3.1378" × 3.1535" | — | — |
This family is represented by a single engine in the database: 98 ci, 4 cylinders, a 3.1378" × 3.1535" bore and stroke.
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.