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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 8.1L) >> Description and Operation >> Engine Component Description >> Cylinder Block

Cylinder Block

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The engine block is made of cast iron and it has 8 cylinders arranged in a 90 degree V shape with 4 cylinders in each bank. The engine block is a 1 piece casting with the cylinders encircled by coolant jackets.