Overall Impression
We were impressed with the new 6.4L's power when we tested it for the May '07 issue, and still continue to be. It is the most technologically advanced Power Stroke to date, as well as the quietest. And despite all of its potential power-robbing, emissions-friendly gadgets, it is the most powerful Power Stroke ever.
 The 6.0L Power Stroke met...  The 6.0L Power Stroke met emissions standards that the 7.3L couldn't with the use of its EGR (exhaust gas recirculation system). The 6.0L displaced 363 cubic inches, but put out an impressive 325 hp and 560 lb-ft in its introductory year. |  Production of the new 6.4L-equipped...  Production of the new 6.4L-equipped Super Dutys began in December 2006 at this Louisville plant. |  |
| YEAR | HP@RPM | TORQUE@RPM | ENGINE NOTES |
| 1994.5 | 210@3,000 | 425@2,000 | 7.3L, direct injection, |
| | turbocharged, |
| 17.5:1 compression |
| 1995 | 210@3,000 | 425@2,000 | |
| 1996 | 215@3,000 | 450@2,000 |
| 1997 | 225@3,000 | 450@2,000 |
| 1999 | 235@2,700 | 500@1,600 | 7.3L becomes |
| | intercooled, smaller |
| turbo (.84 inches), |
| larger 120cc injectors |