Pontiac 207ci 9:1 Specs
Pontiac Pontiac 207ci · 3.620" × 3.310" · 9:1 engine specs: 207 ci (3.4L), 6-cylinder, 3.62" bore x 3.31" stroke, 9:1 compression.
Dimensions
| Displacement | 207 ci / 3.4 L |
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| Bore | 3.62" |
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| Stroke | 3.31" |
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| Cylinders | 6 |
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| Configuration | I6 |
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| Compression ratio | 9:1 |
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| Rod length | 5.7" |
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| Rod ratio | 1.722 |
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| Bore/stroke ratio | 1.094 |
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Construction
| Block material | cast iron |
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| Head material | cast iron |
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| Valvetrain | OHV |
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| Fuel type | gas |
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| Advertised HP | 160 hp |
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| Years | 1993–1995 |
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What these numbers mean
| Bore/stroke character | 1.094 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,310 ft/min — conservative for a street engine |
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| Rod ratio | 1.722 — moderate — the range most production V8s fall in |
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| Displacement per cylinder | 34.5 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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Cylinder head
| Intake valve diameter | 1.72" |
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| Exhaust valve diameter | 1.415" |
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Variants sharing these dimensions (3)
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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| 1993 | 160 hp | — |
| 1994 | 160 hp | — |
| 1995 | 160 hp | — |
Similar engines
← All Pontiac 207ci engines