Indexing Spark Plugs

Discussion in 'General Questions' started by Fabian, Sep 16, 2009.

  1. Fabian

    Fabian Well-Known Member

    G'day all

    Does someone know the correct angle (or post a photo) that the spark plug electrode should face, in relation to the cylinder ports for best power.

    Indexing the spark plugs for a bit of extra power can't be a bad thing.


  2. Al.Fisherman

    Al.Fisherman Active Member

    If you are going to index a plug, the GAP should be the closest to the center of the bore/cylinder. In our case felt tip mark the ground electrode and this will be pointing forward when correct. Do you have indexing washers available or are you going to have to order them?
  3. Fabian

    Fabian Well-Known Member

    Good advise - i don't have indexing washers but my local speed shop/hotrod shop in my area should have them or advise where i can purchase them.