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Thread: Hemi Head bolt Sequence???

  1. #1
    DAVE94LIGHTNING
    Guys, what is the loosening and tightening sequence for the early hemi headbolt pattern? Thanks, I just don't want to damage the heads when I remove them.
    Dave.

  2. #2
    shockwaveharry
    Lefty-loosey, righty-tighty...
    OK, for real. Chrysler 426 Hemi Engine
    Component Torque
    Camshaft Cap Screw ( Race Hemi ) 75 ft. lbs.
    Camshaft Cap Screw ( Street Hemi ) 40 ft. lbs.
    Crankshaft Pulley-to-Vibration Damper Bolts 200 inch lbs.
    Crankshaft Rear Bearing Seal Retainer Bolts 30 ft. lbs.
    Cylinder Head Bolts ( Cast iron head ) 70-75 ft. lbs.
    Cylinder Head Bolts ( Aluminum head ) 65-70 ft. lbs.
    Cylinder Head Stud Nuts ( Cast iron head ) 70-75 ft. lbs.
    Cylinder Head Stud Nuts ( Aluminum head ) 65-70 ft. lbs.
    Exhaust Manifold Nuts 30 ft. lbs.
    Flexplate-to-Converter Bolts 65 ft. lbs.
    Flexplate-to-Crankshaft Bolts 70 ft. lbs.
    Flywheel-to-Crankshaft Bolts 70 ft. lbs.
    Flywheel Housing-to-Engine Block Bolts 50 ft. lbs.
    Intake Manifold Bolts 40 ft. lbs.
    Main Bearing Cap Bolts 100 ft. lbs.
    Main Bearing Cap Tie Bolt 45 ft. lbs.
    Oil Pan Bolts 15 ft. lbs.
    Oil Pump Cover Bolts 10 ft. lbs.
    Oil Pump Attaching Bolts 35 ft. lbs.
    Rocker Shaft Bracket Bolts 30 ft. lbs.
    Rod Bearing Nuts ( 7/16 in. bolt ) 75 ft. lbs.
    Rod Bearing Nuts ( 1/2 in. bp/t ) 82 ft. lbs.
    Vibration Damper-to-Crankshaft Bolt 135 ft. lbs.
    Water Pump Bolts 30 ft. lbs.

  3. #3
    Kurtis500
    Start with the centers and go out. And go slowly, the rocker stands are under pressure the whole time. Try to make the torqueing as even as possible across the rocker shafts.
    [ December 04, 2002, 01:21 PM: Message edited by: Kurtis500 ]

  4. #4
    DAVE94LIGHTNING
    Thanks guys Got them off.

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