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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Mechanical - 4.8L, 5.3L, & 6.0L (Unit Repair)) >> Description and Operation >> Engine Component Description >> Cylinder Heads

Cylinder Heads

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The cylinder heads are cast aluminum and have pressed in place powdered metal valve guides and valve seats. Passages for the engine coolant air bleed system are at the front of each cylinder head. The valve rocker arm covers are retained to the cylinder head by four center mounted rocker arm cover bolts.

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