See other engines in this family
The same engine also has a main page: GMC LV1.
GMC LV1 specs: 262 ci (4.3L) 6-cylinder, 3.92 x 3.62 in (99.6 x 91.9 mm) bore and stroke. Built 2018–2019. Used in the Chevrolet Chevy Van / Express.
The GMC 262ci (LV1) is oversquare — the 3.92" bore exceeds the 3.62" stroke by 8.3% — a layout that favors airflow and RPM over leverage at the crank. The 3.62" stroke puts mean piston speed at 4,000 ft/min around 6,650 RPM, which is where a production bottom end is generally considered at its limit. Each of the 6 cylinders displaces 43.7 ci (716 cc).
It is one of 4 engines in the GMC 262ci family, all of them 262 ci — the differences between them are in compression, heads and rating, not displacement. 2 factory variants share these dimensions across 2018–2019.
| Displacement | 262 ci / 4.3 L |
|---|---|
| Bore | 3.92" |
| Stroke | 3.62" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.083 |
| Fuel type | gas |
|---|---|
| Years | 2018–2019 |
| Bore/stroke character | 1.083 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,620 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 43.7 ci |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2018 | — | LV1 |
| 2019 | — | LV1 |
2 factory vehicles, 2018–2026. Each year opens that model's engine table.