| Engine Type | In-line 6 Cylinder |
| Bore | 95.25 mm (3.75 in.) |
| Stroke | 98.93 mm (3.895 in.) |
| Displacement | 4.2 liters (258 cu. in.) |
| Compression Ratio | 9.2 : 1 |
| Compression Pressure | 827-1034 kPa (120-150 psi) |
| Maximum Variation Between Cylinders | 206 kPa (30 psi) |
| Torque | 285 Nm (210 ft. lbs.) @ 2000 rpm |
| Firing Order | 1-5-3-6-2-4 |
| Lubrication | Pressure Feed-Full Flow Filtration |
| Engine Oil Capacity | 4.7L (5 qts) |
| Cooling System | Liquid Cooled-Forced Circulation |
| Cooling System Capacity | 9.9L (10.5 qts) |
| Cylinder Block | Cast Iron |
| Crankshaft | Cast Nodular Iron |
| Cylinder Head | Cast Iron |
| Camshaft | Cast Iron |
| Pistons | Aluminum Alloy (with struts) |
| Combustion Chamber | Single Quench |
| Connecting Rods | Cast Iron |