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Exhaust manifold bolt question?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by juanblzer, Apr 9, 2002.

  1. juanblzer

    juanblzer 1/2 ton status

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    I'm removing my headers and I'm going back to exhaust manifolds. How many exhaust manifold bolts do I need. Is this a dealer only item? What torque should they be at? Does anyone know if Stage 8 fasteners makes a locking bolt for exhaust manifolds? I have the header locking bolts by stage 8 if anyone is interested.
    Juan
     
  2. 84_Chevy_K10

    84_Chevy_K10 Banned

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    You'll need 6 bolts for each side and I have no clue where you'd get them.
     
  3. FWP

    FWP CRS

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    12, 6 ea side (grade 5). Go to Ace, best hardware selection in town. 20 ft/lbs outside, 30 inside. You don't need locking bolts for manifolds, to much mass to work loose.
     
  4. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I guess you have been plenty lucky if you have never had an exhaust manifold bolt come loose on you yet, or worse yet, break. I recommend using outside shake proof washers instead of lock tabs or lock washers. A shake proof washer will never come loose.
     
  5. FWP

    FWP CRS

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    Maybe I have been lucky....... I haven't had any problems on either of my chevys....
     
  6. juanblzer

    juanblzer 1/2 ton status

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    fred,
    I pm'd you
     

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