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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Mechanical - 6.6L - Introduction) >> Description and Operation >> Engine Component Description >> Engine Block

Engine Block

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The engine block utilizes a deep skirt design for increased rigidity. The cylinders are positioned in a 90 degree "V" orientation with the number one cylinder being the right front. The block is induction hardened for increased durability. The crankshaft bearing caps are cross-bolted to enhance structural rigidity.

Fig 1: Identifying 6.6L (LLY) Cylinder Locations
GM923062Courtesy of GENERAL MOTORS CORP.
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