SERVICE MANUALCYLINDER HEAD & VALVESSection 3NEW STYLE CYLINDER HEAD CHARTProduction Part No.Engine Type688 833 C2*Turbocharged"B" and "C" Engines680 426 C2*Turbocharged"NON-B or C" Engines680 427 C2*Naturally AspiratedEngines.The old style cylinder head can be identified bythe casting number (see chart) located on top ofthe cylinder head at intake side between numberfour and five nozzle locations (Refer to Figure 6).OLD STYLE CYLINDER HEAD CHARTProduction Part No.Engine Type688 833 C1 *Turbocharged"B" Engines680 426 C1 *Turbocharged"NON-B or C" Engines680 427 C1 *Naturally AspiratedEngines.*NON-SERVICEABLE Part Numbers.CGES-185-3PRINTED IN UNITED STATES OF AMERICAPage 4
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