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Ford 227ci specs: 227 ci (3.7L) 6-cylinder, 3.76 x 3.413 in (95.5 x 86.7 mm) bore and stroke, 10.5:1 compression. Rated 260 hp, 2011–2014.
The Ford 227ci is oversquare — the 3.76" bore exceeds the 3.413" stroke by 10.2% — a layout that favors airflow and RPM over leverage at the crank. The 3.413" stroke does not reach 4,000 ft/min of mean piston speed until about 7,050 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. A rod ratio of 1.761 is long by production standards — less side-load on the cylinder wall and gentler piston acceleration around TDC, the geometry that tolerates high RPM. Each of the 6 cylinders displaces 37.8 ci (620 cc).
10.5:1 is in the range that usually runs on pump premium.
It is one of 3 engines in the Ford 227ci family, all of them 227 ci — the differences between them are in compression, heads and rating, not displacement. 4 factory variants share these dimensions, rated at 260 hp across 2011–2014.
| Displacement | 227 ci / 3.7 L |
|---|---|
| Bore | 3.76" |
| Stroke | 3.413" |
| Cylinders | 6 |
| Compression ratio | 10.5:1 |
| Rod length | 6.011" |
| Rod ratio | 1.761 |
| Bore/stroke ratio | 1.102 |
| Piston deck clearance | 0" |
| Advertised HP | 260 hp |
|---|---|
| Years | 2011–2014 |
| Bore/stroke character | 1.102 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,413 ft/min — conservative for a street engine |
| Rod ratio | 1.761 — long — less side loading on the cylinder wall, favours high RPM |
| Displacement per cylinder | 37.8 ci |
| Static compression | 10.5:1 — in the range that usually runs on pump premium |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2011 | 260 hp | — |
| 2012 | 260 hp | — |
| 2013 | 260 hp | — |
| 2014 | 260 hp | — |