white haze on spark plugs and exhaust valves?

[86ttopmustang]

so today i dissasembled my engine and when i took the heads off i noticed that there is a white haze on the spark plugs and the exhaust valves but its not on the intake valves.

Is this normal????

its like a bright white, and i have never seen that before so if you guys no what this is or have a guess its better than mine because i have no clue.

 

[BlownFiveLiter]

Sounds like a lean condition. How old are the O2 sensors? Dirty fuel filter? Any codes? It doesn't sound normal, so start with the basics and see if anything comes up.

 

[SmockDoiley]

coolant can create a white like powder or crystalization in the combustion chamber. Did you notice anything on the head gasket or anything that may indicate a leak?

 

[jrichker]

Gasoline additives like add to your tank octane boosters can leave deposits.