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Ford PFDi specs: 213.4 ci (3.5L) 6-cylinder, 3.642 x 3.413 in (92.5 x 86.7 mm) bore and stroke, 11.8:1 compression. Rated 275 hp, 2020–2026.
The Ford PFDi is oversquare — the 3.6417" bore exceeds the 3.4134" stroke by 6.7% — a layout that favors airflow and RPM over leverage at the crank. The 3.4134" 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. Each of the 6 cylinders displaces 35.6 ci (583 cc).
11.8:1 on aluminum heads is high for a production gasoline engine; running a ratio like that on pump fuel depends on chamber design and fuel delivery rather than the number alone.
It is one of 17 engines in the Cyclone V6 family, the largest at 213.4 ci. 7 factory variants share these dimensions, rated at 275 hp across 2020–2026.
| Displacement | 213.4 ci / 3.5 L |
|---|---|
| Bore | 3.6417" |
| Stroke | 3.4134" |
| Cylinders | 6 |
| Configuration | V6 |
| Compression ratio | 11.8:1 |
| Bore/stroke ratio | 1.067 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Firing order | 1-4-2-5-3-6 |
| Advertised HP | 275 hp |
| Years | 2020–2026 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2020 | net | 275 @ 6500 | 262 lb-ft @ 3750 | 11.8:1 |
| 2021 | net | 275 @ 6500 | 262 lb-ft @ 3750 | 11.8:1 |
| 2025 | net | 275 @ 6250 | 260 lb-ft @ 4000 | 11.8:1 |
| 2026 | net | 275 @ 6250 | 260 lb-ft @ 4000 | 11.8:1 |
Factory specification sheet.
| Bore/stroke character | 1.067 — 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 |
| Displacement per cylinder | 35.6 ci |
| Static compression | 11.8:1 — high enough that pump premium or better is normally required |
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 |
|---|---|---|
| 2020 | 275 hp | PFDi |
| 2021 | 275 hp | PFDi |
| 2022 | 275 hp | PFDi |
| 2023 | 275 hp | PFDi |
| 2024 | 275 hp | PFDi |
| 2025 | 275 hp | PFDi |
| 2026 | 275 hp | PFDi |
1 factory vehicle, 2020–2026. Each year opens that model's engine table.