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Thread: Oldsmobile Torque Specs

  1. #1
    Administrator 88hurstolds's Avatar
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    Default Oldsmobile Torque Specs

    Oldsmobile Small-Block Engines

    Cylinder Head Bolts (1/2in. bolt) 130 ft. lbs.
    Cylinder Head Studs (1/2in.) 120 ft. lbs.
    Camshaft Sprocket Bolt 65 ft. lbs.
    Exhaust Manifold Bolts 35 ft. lbs.
    Flywheel-to-Crankshaft Bolts 75-85 ft. lbs.
    Harmonic Balancer-to-Crankshaft Bolt 130 ft. lbs.
    Intake Manifold Bolts (Cast iron intake) 35 ft. lbs.
    Intake Manifold Bolts (Aluminum intake w/hardened washers) 35 ft. lbs.
    Main Bearing Cap Bolts Caps #1-4 75 ft. lbs.
    Cap #5 110 ft. lbs.
    Oil Filter Adapter-to-Block Bolts 30 ft. lbs.
    Oil Pan Bolts 15 ft. lbs.
    Oil Pump-to-Rear Main Bolts 35 ft. lbs.
    Rocker Arm Pivot Bolt 25 ft. lbs.
    Rod Bearing Bolts (3/8in. bolt) 42 ft. lbs.


    --------------------------------------------------------------------------------

    Oldsmobile Big-Block Engines

    Cylinder Head Bolts (7/16in. bolt) 80-85 ft. lbs.
    Cylinder Head Studs (7/16in. stud) 85 ft. lbs.
    Camshaft Sprocket Bolt 65 ft. lbs.
    Exhaust Manifold Bolts 35 ft. lbs.
    Flywheel-to-Crankshaft Bolts 75-85 ft. lbs.
    Harmonic Balancer-to-Crankshaft Bolt 130 ft. lbs.
    Intake Manifold Bolts (Cast iron intake) 35 ft. lbs.
    Intake Manifold Bolts (Aluminum intake w/hardened washers) 35 ft. lbs.
    Main Bearing Cap Bolts Caps #1-4 75 ft. lbs.
    Cap #5 110 ft. lbs.
    Oil Filter Adapter-to-Block Bolts 30 ft. lbs.
    Oil Pan Bolts 15 ft. lbs.
    Oil Pump-to-Rear Main Bolts 35 ft. lbs.
    Rocker Arm Pivot Bolt 25 ft. lbs.
    Rod Bearing Bolts (3/8in. bolt) 42 ft. lbs.


    Torque sequence-Oldsmobile Big-block & small-block engines
    88 CSC White/Claret - T-tops
    88 H/O Triple Black
    87 442 Black/Gray - T-tops
    85 442 White/Blue - T-tops
    85 442 White/Claret - T-tops
    85 442 White/Sage
    84 H/O Aero Commemorative #2199 - Sunroof
    83 H/O #1607 Sand Gray - T-tops
    83 H/O #727 Maple
    "Keep them Rockets lit!"

  2. #2
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    Default

    Great resource! Thanks for posting. BTW, in the CSM for the '87, it gives a high torque spec for the harmonic balancer. "Crankshaft balancer to crankshaft....200 - 310 ft. lb". Why would the manual have such a high spec? Sounds like overkill, or the sound of a bolt breaking off in the crankshaft snout... Your spec sounds much more reasonable.
    '76 Cutlass S 350 (1981-83)
    '79 Cutlass Supreme 260 (1983-85)
    '79 Cutlass Supreme 350 Chevy (1989-1993)
    '77 Cutlass Salon 350 (1996-present)
    '98 Bravada - green - (2005) RIP
    '98 Bravada - black - (2005-2011) sold
    '87 442 (May 2010) undergoing restoration

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