Engine Compression
| Compression Ratio |
| |
5.0L |
8.4:1 |
| |
6.0L |
8.3:1 |
| Compression Pressure |
120-140 psi |
| Maximum Pressure Variation |
30 psi |
Measure compression pressure with engine at normal operating temperature, spark plugs removed, throttle and choke valves wide open and engine at cranking speed.