See other engines in this family
The same engine also has a main page: Ford Duratec 30.
Mercury Duratec 30 specs: 182 ci (3.0L) 6-cylinder, 3.504 x 3.13 in (89 x 79.5 mm) bore and stroke. Rated 200 hp, 1996–2005. Used in the Ford Taurus. DOHC.
The Mercury Duratec 30 is oversquare — the 3.504" bore exceeds the 3.13" stroke by 11.9% — a layout that favors airflow and RPM over leverage at the crank. The 3.13" stroke does not reach 4,000 ft/min of mean piston speed until about 7,650 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 30.3 ci (497 cc).
It is one of 11 engines in the Duratec family, sitting between the 122 ci and 213 ci members. 10 factory variants share these dimensions, rated at 200 hp across 1996–2005.
| Displacement | 182 ci / 3 L |
|---|---|
| Bore | 3.504" |
| Stroke | 3.13" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.119 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 200 hp |
| Years | 1996–2005 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1999 | net | 200 @ 5750 * | 200 lb-ft @ 4500 * | — |
| 2000 | net | 200 @ 5650 * | 200 lb-ft @ 4400 * | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 1.119 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,130 ft/min — conservative for a street engine |
| Displacement per cylinder | 30.3 ci |
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 |
|---|---|---|
| 1996 | 200 hp | Duratec 30 |
| 1997 | 200 hp | Duratec 30 |
| 1998 | 200 hp | Duratec 30 |
| 1999 | 200 hp | Duratec 30 |
| 2000 | 200 hp | Duratec 30 |
| 2001 | 200 hp | Duratec 30 |
| 2002 | 200 hp | Duratec 30 |
| 2003 | 200 hp | Duratec 30 |
| 2004 | 200 hp | Duratec 30 |
| 2005 | 200 hp | Duratec 30 |
6 factory vehicles, 1996–2012. Each year opens that model's engine table.