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Home >> Buick >> 2013 >> LaCrosse AWD V6-3.6L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly
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Cylinder Head Assembly




Left Sequence:






DO NOT reuse the old cylinder head bolts.

Install the NEW M11 cylinder head bolts (1).
Tighten the M11 cylinder head bolts a first pass in sequence to 30 Nm (22 lb ft).
Tighten the M11 cylinder head bolts a second pass in sequence an additional 150.
Install the 2 NEW front M8 left cylinder head bolts (2).
Tighten the M8 cylinder head bolts a first pass to 15 Nm (11 lb ft).
Tighten the M8 cylinder head bolts a second pass in sequence an additional 75 degrees.

Left Sequence:




Right Sequence:






Deck Flatness

Warpage less than 0.05 mm (0.002 in)

Camshaft bearing cap


Left (DI):




Right (DI):





First pass 10 Nm (89 lb in)
Second pass bolts 1-4 Loosen
Final pass bolts 1-4 10 Nm (89 lb in)

Intake manifold Specifications

Exhaust manifold Specifications

Camshaft Gear/Sprocket Specifications