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Dodge 8.4L V10 specs: 511 ci (8.4L) 10-cylinder, 4.055 x 3.96 in (103 x 100.6 mm) bore and stroke, 10.2:1 compression. Rated 600-645 hp, 2008–2017.
The Dodge 8.4L V10 is close to square: 4.055" bore against 3.96" stroke, within 2.4%, which splits the difference between a high-revving layout and a torque layout. The 3.96" stroke puts mean piston speed at 4,000 ft/min around 6,050 RPM, which is where a production bottom end is generally considered at its limit. Each of the 10 cylinders displaces 51.1 ci (837 cc).
10.2:1 is in the range that usually runs on pump premium.
8 factory variants share these dimensions, rated from 600 to 645 hp across 2008–2017.
| Displacement | 511 ci / 8.4 L |
|---|---|
| Bore | 4.055" |
| Stroke | 3.96" |
| Cylinders | 10 |
| Configuration | V10 |
| Compression ratio | 10.2:1 |
| Bore/stroke ratio | 1.024 |
| Fuel type | gas |
|---|---|
| Advertised HP | 600–645 hp |
| Years | 2008–2017 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2008 | net | 600 @ 6100 | 560 lb-ft | — |
| 2009 | net | 600 @ 6100 | 560 lb-ft | — |
| 2010 | net | 600 @ 6100 | 560 lb-ft | — |
| 2013 | net | 640 @ 6200 | 600 lb-ft @ 5000 | — |
| 2014 | net | 640 @ 6200 | 600 lb-ft @ 5000 | — |
| 2015 | net | 645 @ 6200 | 600 lb-ft @ 5000 | — |
| 2016 | net | 645 @ 6200 | 600 lb-ft @ 5000 | — |
| 2017 | net | 645 @ 6200 | 600 lb-ft @ 5000 | — |
Factory specification sheet.
| Bore/stroke character | 1.024 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,960 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 51.1 ci |
| Static compression | 10.2:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| 2008 | 600 hp | 8.4L V10 |
| 2009 | 600 hp | 8.4L V10 |
| 2010 | 600 hp | 8.4L V10 |
| 2013 | 640 hp | 8.4L V10 |
| 2014 | 640 hp | 8.4L V10 |
| 2015 | 645 hp | 8.4L V10 |
| 2016 | 645 hp | 8.4L V10 |
| 2017 | 645 hp | 8.4L V10 |
1 factory vehicle, 2008–2017. Each year opens that model's engine table.