Ram Pentastar 11.3:1 Specs
Ram Pentastar · 3.780" × 3.268" · 11.3:1 engine specs: 220 ci (3.6L), 6-cylinder, 3.7795" bore x 3.2677" stroke, 11.3:1 compression.
Dimensions
| Displacement | 220 ci / 3.6 L |
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| Bore | 3.7795" |
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| Stroke | 3.2677" |
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| Cylinders | 6 |
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| Compression ratio | 11.3:1 |
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| Bore/stroke ratio | 1.157 |
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Construction
| Block material | aluminum |
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| Head material | aluminum |
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| Valvetrain | DOHC |
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| Fuel type | gas |
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| Advertised HP | 305 hp |
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What these numbers mean
| Bore/stroke character | 1.157 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,268 ft/min — conservative for a street engine |
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| Displacement per cylinder | 36.7 ci |
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| Static compression | 11.3:1 — high enough that pump premium or better is normally required |
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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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| — | 305 hp | ERB (Upgraded) |
| — | 305 hp | ERB (Upgrade) |
Vehicles (2)
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