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SPARK PLUG GAP

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1988k5, Apr 21, 2002.

  1. 1988k5

    1988k5 Newbie

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    Could someone please tell me the correct spark plug gap for CR-43 TS plugs. I have a 1988 K 5, with a 5.7 engine. Thanks.........
     
  2. POWERMAD

    POWERMAD 1/2 ton status

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    Location:
    Oregon
    Usualy 0.045 gap.
     
  3. CV202

    CV202 1/2 ton status

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    Look at the sticker under your hood that says CATALYST. in that tag should be the proper gap for your rig. I believe .035-.040 is right.
     
  4. 90K5

    90K5 1/2 ton status

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    Location:
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    Mine are supposed to be .035, but I took them to .045 for a little better economy
     

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