American Motors 232ci 8.27:1 Specs
American Motors American Motors 232ci · 3.75" × 3.5" · 8.27:1 engine specs: 232 ci (3.8L), 6-cylinder, 3.75" bore x 3.5" stroke, 8.27:1 compression.
Dimensions
| Displacement | 232 ci / 3.8 L |
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| Bore | 3.75" |
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| Stroke | 3.5" |
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| Cylinders | 6 |
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| Compression ratio | 8.27:1 |
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| Rod length | 6.125" |
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| Rod ratio | 1.75 |
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| Bore/stroke ratio | 1.071 |
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| Piston deck clearance | 0.02" |
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Construction
| Induction | 1-1 |
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| Advertised HP | 100–135 hp |
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| Years | 1971–1974 |
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What these numbers mean
| Bore/stroke character | 1.071 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,500 ft/min — conservative for a street engine |
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| Rod ratio | 1.75 — long — less side loading on the cylinder wall, favours high RPM |
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| Displacement per cylinder | 38.7 ci |
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| Static compression | 8.27:1 — low by modern standards, generally happy on regular pump fuel |
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Cylinder head
| Chamber volume | 62.5 cc |
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| Rocker ratio | 1.6:1 |
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| Lifter type | hydraulic |
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Variants sharing these dimensions (4)
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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| 1971 | 135 hp | — |
| 1972 | 100 hp | — |
| 1973 | 100 hp | — |
| 1974 | 100 hp | — |
Similar engines
Source: NHRA blueprints — nhra.net blueprints
← All American Motors 232ci engines