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Ford Vulcan specs: 182 ci (3.0L) 6-cylinder, 3.504 x 3.13 in (89 x 79.5 mm) bore and stroke. Rated 140-155 hp, 1986–2007. Used in the Ford Taurus. DOHC.
The Ford Vulcan is oversquare — the 3.5039" bore exceeds the 3.1299" stroke by 11.9% — a layout that favors airflow and RPM over leverage at the crank. The 3.1299" 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 5 engines in the Ford 182ci family, all of them 182 ci — the differences between them are in compression, heads and rating, not displacement. 22 factory variants share these dimensions, rated from 140 to 155 hp across 1986–2007.
| Displacement | 182 ci / 3 L |
|---|---|
| Bore | 3.5039" |
| Stroke | 3.1299" |
| Cylinders | 6 |
| Configuration | V6 |
| Compression ratio | 9–9.3:1 (published figures vary) |
| Bore/stroke ratio | 1.119 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Firing order | 1-4-2-5-3-6 |
| Advertised HP | 140–155 hp |
| Years | 1986–2007 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1987 | net | 140 @ 4800 | 160 lb-ft @ 3000 | 9.3:1 |
| 1988 | net | 140 @ 4800 | 160 lb-ft @ 3000 | 9.3:1 |
| 1990 | net | 140 @ 4800 | 160 lb-ft @ 3000 | 9.3:1 |
| 1991 | net | 140 @ 4800 | 160 lb-ft @ 3000 | 9.3:1 |
| 1992 | net | 140 @ 5500 | 151 lb-ft @ 4250 | 9:1 |
| 1994 | net | 140 @ 4800 | 160 lb-ft @ 3000 | 9.2:1 |
| 1995 | net | 140 @ 4800 | 165 lb-ft @ 3250 | — |
| 1996 | net | 145 @ 5250 * | 170 lb-ft @ 3250 * | — |
| 1997 | net | 145 @ 5250 * | 170 lb-ft @ 3250 * | — |
| 1998 | net | 145 @ 5250 | 170 lb-ft @ 3250 | — |
| 2003 | net | 155 @ 4900 | 186 lb-ft @ 3900 | — |
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 |
|---|---|---|
| 1986 | 140 hp | Vulcan |
| 1987 | 140 hp | Vulcan |
| 1988 | 140 hp | Vulcan |
| 1989 | 140 hp | Vulcan |
| 1990 | 140 hp | Vulcan |
| 1991 | 140 hp | Vulcan |
| 1992 | 140 hp | Vulcan |
| 1993 | 140 hp | Vulcan |
| 1994 | 140 hp | Vulcan |
| 1995 | 140 hp | Vulcan |
| 1996 | 145 hp | Vulcan |
| 1997 | 145 hp | Vulcan |
| 1998 | 145 hp | Vulcan |
| 1999 | 145 hp | Vulcan |
| 2000 | 155 hp | Vulcan |
| 2001 | 155 hp | Vulcan |
| 2002 | 155 hp | Vulcan |
| 2003 | 155 hp | Vulcan |
| 2004 | 155 hp | Vulcan |
| 2005 | — | Vulcan |
| 2006 | 155 hp | Vulcan |
| 2007 | — | Vulcan |
1 factory vehicle, 1986–2007. Each year opens that model's engine table.