Mitsubishi 4G63 9:1 Specs
Mitsubishi 4G63 · 3.346" × 3.465" · 9:1 engine specs: 122 ci (2L), 4-cylinder, 3.3465" bore x 3.4646" stroke, 9:1 compression.
Dimensions
| Displacement | 122 ci / 2 L |
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| Bore | 3.3465" |
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| Stroke | 3.4646" |
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| Cylinders | 4 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 0.966 |
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Construction
| Block material | cast iron |
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| Head material | aluminum |
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| Valvetrain | SOHC |
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| Fuel type | gas |
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| Advertised HP | 100–135 hp |
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What these numbers mean
| Bore/stroke character | 0.966 — square — bore and stroke are within 5%, a balanced compromise |
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| Mean piston speed at 6,000 RPM | 3,465 ft/min — conservative for a street engine |
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| Displacement per cylinder | 30.5 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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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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| — | 100 hp | 4G63 (NA 8-valve) |
| — | 135 hp | 4G63 (NA 16-valve) |
Vehicles (5)
- Mitsubishi Galant
- Mitsubishi Lancer
- Mitsubishi Eclipse (1G NA)
- Eagle Talon (1G NA)
- Plymouth Laser (1G NA)
Similar engines
← All 4G63 engines