Bore, stroke, displacement and compression for all 2 GMC GM Small Gasoline Engine (SGE) engines, compared side by side. Free spec reference.
| Displacement | 98–110 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.110–3.169" |
| Stroke | 3.209–3.472" |
| Compression | 10.0–10.5:1 |
| Advertised power | 132–138 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LVL | 110 ci | 3.1693" × 3.4724" | 10:1 | 138 |
| LV7 | 98 ci | 3.1102" × 3.2087" | 10.5:1 | 132 |
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
1 of 2 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.