Oldsmobile LD9 Specs
Oldsmobile LD9 engine specs: 146 ci (2.4L), 4-cylinder, 3.5433" bore x 3.7008" stroke, 9.5:1 compression.
Dimensions
| Displacement | 146 ci / 2.4 L |
|---|
| Bore | 3.5433" |
|---|
| Stroke | 3.7008" |
|---|
| Cylinders | 4 |
|---|
| Compression ratio | 9.5:1 |
|---|
| Bore/stroke ratio | 0.957 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | aluminum |
|---|
| Valvetrain | DOHC |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 150 hp |
|---|
What these numbers mean
| Bore/stroke character | 0.957 — square — bore and stroke are within 5%, a balanced compromise |
|---|
| Mean piston speed at 6,000 RPM | 3,701 ft/min — in the range typical of performance street engines |
|---|
| Displacement per cylinder | 36.5 ci |
|---|
| Static compression | 9.5:1 — in the range that usually runs on pump premium |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|
| — | 150 hp | LD9 |
| — | 150 hp | LD9 |
Vehicles (8)
- Oldsmobile Achieva
- Oldsmobile Alero
- Oldsmobile Cutlass
- Alero
- Grand Am
- Cavalier Z24
- Pontiac Grand Am
- Achieva
Similar engines
← All Quad 4 engines