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Ram Magnum V10 specs: 488 ci (8.0L) 10-cylinder, 4.00 x 3.882 in (101.6 x 98.6 mm) bore and stroke. Rated 300-310 hp, 1994–2003.
The Ram Magnum V10 is close to square: 4" bore against 3.8819" stroke, within 3.0%, which splits the difference between a high-revving layout and a torque layout. The 3.8819" stroke puts mean piston speed at 4,000 ft/min around 6,200 RPM, which is where a production bottom end is generally considered at its limit. Each of the 10 cylinders displaces 48.8 ci (800 cc).
It is one of 13 engines in the Magnum family, the largest at 488 ci. 10 factory variants share these dimensions, rated from 300 to 310 hp across 1994–2003.
| Displacement | 488 ci / 8 L |
|---|---|
| Bore | 4" |
| Stroke | 3.8819" |
| Cylinders | 10 |
| Configuration | V10 |
| Bore/stroke ratio | 1.03 |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | gas |
| Advertised HP | 300–310 hp |
| Years | 1994–2003 |
| Bore/stroke character | 1.030 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,882 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 48.8 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 |
|---|---|---|
| 1994 | 300 hp | Magnum V10 |
| 1995 | 300 hp | Magnum V10 |
| 1996 | 300 hp | Magnum V10 |
| 1997 | 300 hp | Magnum V10 |
| 1998 | 300 hp | Magnum V10 |
| 1999 | 310 hp | Magnum V10 |
| 2000 | 310 hp | Magnum V10 |
| 2001 | 310 hp | Magnum V10 |
| 2002 | 310 hp | Magnum V10 |
| 2003 | 310 hp | Magnum V10 |