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Plymouth EER specs: 167 ci (2.7L) 6-cylinder, 3.386 x 3.091 in (86 x 78.5 mm) bore and stroke. Rated 178-190 hp, 2006–2010. Used in the Dodge Charger. DOHC.
The Plymouth Chrysler LH (EER) is oversquare — the 3.3858" bore exceeds the 3.0906" stroke by 9.6% — a layout that favors airflow and RPM over leverage at the crank. The 3.0906" stroke does not reach 4,000 ft/min of mean piston speed until about 7,750 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 27.8 ci (456 cc).
It is one of 3 engines in the Chrysler LH family, all of them 167 ci — the differences between them are in compression, heads and rating, not displacement. 5 factory variants share these dimensions, rated from 178 to 190 hp across 2006–2010.
| Displacement | 167 ci / 2.7 L |
|---|---|
| Bore | 3.3858" |
| Stroke | 3.0906" |
| Cylinders | 6 |
| Configuration | V6 |
| Bore/stroke ratio | 1.096 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 178–190 hp |
| Years | 2006–2010 |
| Bore/stroke character | 1.096 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,091 ft/min — conservative for a street engine |
| Displacement per cylinder | 27.8 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 |
|---|---|---|
| 2006 | 190 hp | EER |
| 2007 | 190 hp | EER |
| 2008 | 190 hp | EER |
| 2009 | 178 hp | EER |
| 2010 | 178 hp | EER |