CTS-V V8-6.0L VIN U (2006)
6. Rotate the crankshaft until the number one piston is at top dead center (TDC) of the compression stroke.
In this position, cylinder number one rocker arms will be off lobe lift, and the crankshaft sprocket key will be at the 1:30 position.
The engine firing order is 1,8,7,2,6,5,4,3.
Cylinders 1,3,5, and 7 are left bank.
Cylinders 2,4,6, and 8 are right bank.
Notice: Refer to Fastener Notice.
7. With the engine in the number one firing position, tighten the following valve rocker arm bolts:
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Tighten the exhaust valve rocker arm bolts 1,2,7, and 8 to 30 N.m (22 lb ft).
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Tighten the intake valve rocker arm bolts 1,3,4, and 5 to 30 N.m (22 lb ft).
8. Rotate the crankshaft 360 degrees.
9. Tighten the following valve rocker arm bolts:
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Tighten the exhaust valve rocker arm bolts 3,4,5, and 6 to 30 N.m (22 lb ft).
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Tighten the intake valve rocker arm bolts 2,6,7, and 8 to 30 N.m (22 lb ft).
10. Install the valve rocker arm covers.
