Engine   6.2L V8 Engine   6.8L V10 Engine  
Cubic inches   378   413  
Required fuel   Minimum 87 octane   Minimum 87 octane  
Firing order   1-5-4-8-6-3-7-2   1-6-5-10-2-7-3-8-4-9  
Ignition system   Coil on plug   Coil on plug  
Spark plug gap   0.041-0.047 inch (1.04-1.20 mm)   0.039-0.043 inch (1.00-1.10mm)  
Compression ratio   9.8:1   9.2:1  

Drivebelt Routing
6.2L Engines
Drive Belt Routing
6.8L Engines with A/C
Drive Belt Routing
6.8L Engines without A/C
Drive Belt Routing

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