Plymouth 340 LA V8 Specs
Plymouth 340 LA V8 engine specs: 340 ci (5.6L), 8-cylinder, 4.0394" bore x 3.311" stroke, 10.5:1 compression.
Dimensions
| Displacement | 340 ci / 5.6 L |
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| Bore | 4.0394" |
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| Stroke | 3.311" |
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| Cylinders | 8 |
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| Compression ratio | 10.5:1 |
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| Bore/stroke ratio | 1.22 |
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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 | 275 hp |
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What these numbers mean
| Bore/stroke character | 1.220 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,311 ft/min — conservative for a street engine |
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| Displacement per cylinder | 42.5 ci |
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| Static compression | 10.5:1 — in the range that usually runs on pump premium |
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Vehicles (9)
- AAR Cuda
- Duster 340
- Road Runner
- 'Cuda
- Plymouth Barracuda
- Plymouth 'Cuda
- Plymouth Duster
- Plymouth Duster 340
- Plymouth Road Runner
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