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Torque specs 5.o chev vortec cast iron heads?

The torque specifications for 5.0L Chevrolet Vortec cast iron heads are as follows:

Cylinder head bolts:

* Step 1: 22 ft-lb (30 Nm) in sequence

* Step 2: 37 ft-lb (50 Nm) in sequence

* Step 3: 53 ft-lb (72 Nm) in sequence

* Final step: 65 ft-lb (88 Nm) in sequence

Exhaust manifold bolts:

* 18 ft-lb (25 Nm)

Intake manifold bolts:

* 15 ft-lb (20 Nm)

Rocker arm bolts:

* 22 ft-lb (30 Nm)

Valve cover bolts:

* 7 ft-lb (10 Nm)

It is important to follow the specified torque sequence and values to ensure proper sealing and performance of the cylinder heads. Additionally, it is recommended to use a torque wrench to accurately apply the specified torque values.