| Engine Type | In-line 6 Cylinder |
| Bore | 98.4 mm (3.88 in.) |
| Stroke | 86.69 mm (3.413 in.) |
| Displacement | 4.0L (242 cu. in.) |
| Compression Ratio | 8.8 : 1 |
| Firing Order | 1-5-3-6-2-4 |
| Lubrication System | Pressure feed-full flow filtration |
| Cooling System | Liquid Cooled-Forced Circulation |
| Cylinder Block | Cast Iron |
| Crankshaft | Cast Nodular Iron |
| Cylinder Head | Cast Iron |
| Camshaft | Cast Iron |
| Pistons | Aluminum Alloy |
| Combustion Chamber | Dual-Quench |
| Connecting Rods | Cast Malleable Iron |
| Deck Clearance (Below Block) | 0.0215 in. |
| Hydralic Tappet Clearance | Zero Lash |
| A/C Compressor Bolts | 250 |
| Clutch Cover to Flywheel Bolts | 40 |
| Coil Bracket to Block Bolts | 192 |
| Distributor Clamp Bolt | 204 |
| Exhaust Manifold/Pipe Nuts | 20 |
| Flywheel to Converter Housing Bolts | 28 |
| Fuel Rail Studs/Bolts | 108 |
| Generator Bolts | 42 |
| Generator Bracket to Engine Bolts | 35 |
| Idler Pulley to Cylinder Head Bolts | 35 |
| Oil Pan Drain Plug | 25 |
| Spark Plugs | 27 |
| Starter Motor Mounting Bolts | 33 |
| Thermostat Housing Bolts | 156 |
| Throttle Body Bolts | 90 |
| Water Pump to Block Bolts | 17 |