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What are the torque specs on the heads of a 2002 chevy mal…

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What are the torque specs...
What are the torque specs on the heads of a 2002 chevy malibu
Submitted: 8 years ago.Category: Chevy
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Answered in 9 minutes by:
9/14/2009
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 8 years ago
Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
Satisfied Customers: 33,440
Experience: 20+ yrs. experience as repair shop manager and technician.
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HI,

 

Ok, below is torque specs for head bolts, rocker arms, lower intake, upper intake, and the valve covers, along with necessary tightening sequence:

 

  • Install the cylinder head with a new gasket. Torque the bolts to 33 ft. lbs. (45 Nm) plus an additional 90 degree turn.
    • Install or connect the following:

    • Pushrods, rocker arms and balls. Torque the rocker arm nuts to 18 ft. lbs. (24 Nm).
    • Lower intake manifold. Torque the bolts to 115 inch lbs. (13 Nm).
    • Upper intake plenum. Torque the bolts to 18 ft. lbs. (24 Nm).
    • Rocker arm covers. Torque the bolts to 89 inch lbs. (10 Nm).
    • Exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
    • Exhaust pipe to the exhaust manifold. Torque the bolts to 26 ft. lbs. (35 Nm).
    • Exhaust crossover pipe. Torque the bolts to 18 ft. lbs. (24 Nm).
    • Heat shield. Torque the bolts to 89 inch lbs. (10 Nm).

     

    cylinder head tightening sequence:

     

    Click image to see an enlarged view

     

     

    lower intake manifold:

     

    Click image to see an enlarged view

     

    Eric
    Eric, Automotive Repair Shop Manager
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