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Ford 352ci specs: 352 ci (5.8L) 8-cylinder, 4.06 x 3.40 in (103.1 x 86.4 mm) bore and stroke, 11.25:1 compression. Rated 285 hp, 2010.
The Ford 352ci is oversquare — the 4.06" bore exceeds the 3.4" stroke by 19.4% — a layout that favors airflow and RPM over leverage at the crank. The 3.4" 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 1.588 is in the range most production engines fall in. Each of the 8 cylinders displaces 44.0 ci (721 cc).
11.25:1 is high enough that pump premium or better is normally required.
| Displacement | 352 ci / 5.8 L |
|---|---|
| Bore | 4.06" |
| Stroke | 3.4" |
| Cylinders | 8 |
| Compression ratio | 11.25:1 |
| Rod length | 5.4" |
| Rod ratio | 1.588 |
| Bore/stroke ratio | 1.194 |
| Piston deck clearance | 0.005" |
| Advertised HP | 285 hp |
|---|---|
| Years | 2010 |
| Bore/stroke character | 1.194 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,400 ft/min — conservative for a street engine |
| Rod ratio | 1.588 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 44.0 ci |
| Static compression | 11.25:1 — high enough that pump premium or better is normally required |
| Intake valve diameter | 2.085" |
|---|---|
| Exhaust valve diameter | 1.605" |
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