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Posted on Jun 28, 2008
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Engine Bolt Torques- 2005 Chevy Impala/3400 Engine

Need Torque Specs for, Head Bolts, Rocker arm bolts, and Intake bolts.
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  • 28 more comments 
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4 Answers

ITGuy181

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  • Posted on Dec 02, 2008
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Head Bolts
Step one 37 ft lbs then tignten 120 degrees more

Rocker arms
Step one 11 ft lbs then tighten 90 degresss more

Upper intake
89 inch lbs
Lower intake
132 inch lbs

A

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  • Posted on Jul 08, 2008
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Check online or ask your local dealership I am sure that they will help you.

taterhead 3e

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  • Chevrolet Expert 200 Answers
  • Posted on Mar 07, 2015
taterhead 3e
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Head bolts are supposed to be only used once is 65 ftp,,,i would suggest if you get them to 60ftp i would stop,,,it should be fine,,, start in center at 35ftp working your way around,,, and back and forth,,,after they are all at 35ftp,,then go to 60ftp the same way,,, see chevy headbolt tighting pattern for correct instalation,,,its more to it than just tighting them down,,, use a torque wrench

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Please don't forget to rate. Thank you:

Left side front cylinder head


98e175a.gif
Cylinder head bolt torque sequence-3.4L engine

  • Cylinder head by aligning it with the dowel pins
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  • Left side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).


    • Right side rear cylinder head:


    71cd5b7.gif
    Cylinder head bolt torque sequence-3.4L engine


  • New cylinder head gasket
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  • Upper intake manifold. Torque the bolts to 18 ft. lbs. (25 Nm).
    •
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    cbb8861.jpg

    thanks for your vote !

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