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GMC LN8 specs: 151 ci (2.5L) 4-cylinder. Rated 92 hp, 1985–1988. Used in the GMC Jimmy. Rod ratio and piston speed worked out.
Each of the 4 cylinders displaces 37.8 ci (619 cc).
3 factory variants share these dimensions, rated at 92 hp across 1985–1988.
| Displacement | 151 ci / 2.5 L |
|---|---|
| Cylinders | 4 |
| Configuration | I4 |
| Fuel type | gas |
|---|---|
| Advertised HP | 92 hp |
| Years | 1985–1988 |
| Displacement per cylinder | 37.8 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 |
|---|---|---|
| 1985 | — | LN8 |
| 1987 | — | LN8 |
| 1988 | 92 hp | LN8 |