Buick L67 Specs
Buick L67 engine specs: 231 ci (3.8L), 6-cylinder, 3.7992" bore x 3.4016" stroke, 8.5:1 compression.
Dimensions
| Displacement | 231 ci / 3.8 L |
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| Bore | 3.7992" |
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| Stroke | 3.4016" |
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| Cylinders | 6 |
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| Compression ratio | 8.5:1 |
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| Bore/stroke ratio | 1.117 |
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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 | 240 hp |
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What these numbers mean
| Bore/stroke character | 1.117 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,402 ft/min — conservative for a street engine |
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| Displacement per cylinder | 38.5 ci |
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| Static compression | 8.5:1 — low by modern standards, generally happy on regular pump fuel |
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Vehicles (7)
- Buick Regal GS
- Buick Park Avenue Ultra
- Buick Riviera
- Park Avenue Ultra
- Pontiac Grand Prix GTP
- Regal GS
- Riviera
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