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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1395 (Engine Mechanical - 6.6L (1 Of 5)) >> Description and Operation >> Engine Component Description >> Cylinder Heads

Cylinder Heads

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The cylinder heads are made of aluminum for lighter weight and rapid heat dissipation. There are 4 valves per cylinder and the ports are of a high swirl design for improved combustion. The cylinder head gaskets consist of an all steel laminated construction.

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