Oldsmobile LD2 Specs
Oldsmobile LD2 engine specs: 138 ci (2.3L), 4-cylinder, 3.622" bore x 3.3465" stroke, 9.5:1 compression.
Dimensions
| Displacement | 138 ci / 2.3 L |
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| Bore | 3.622" |
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| Stroke | 3.3465" |
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| Cylinders | 4 |
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| Compression ratio | 9.5:1 |
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| Bore/stroke ratio | 1.082 |
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Construction
| Block material | cast iron |
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| Head material | aluminum |
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| Valvetrain | DOHC |
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| Fuel type | gas |
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| Advertised HP | 150 hp |
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What these numbers mean
| Bore/stroke character | 1.082 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,347 ft/min — conservative for a street engine |
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| Displacement per cylinder | 34.5 ci |
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| Static compression | 9.5:1 — in the range that usually runs on pump premium |
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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 |
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| — | 150 hp | LD2 |
| — | 150 hp | LD2, LG0 |
Vehicles (9)
- Oldsmobile Calais
- Oldsmobile Achieva
- Oldsmobile Cutlass Calais
- Oldsmobile Grand Am
- Cutlass Calais
- Achieva
- Grand Am
- Pontiac Grand Am
- Cutlass Supreme
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