Jon89le Posted November 2, 2002 Report Share Posted November 2, 2002 im about to put my new plugs in and i dont know what to gap them to. They are the AC Delco rapidfire #6 plugs. They are supposedly pregapped to .045" but GM says they should be .060". Which should i do? These are supposed to be direct replacement. Im hoping on a quick responce because it will be a major Pain in the rear to get to the rear 3 plugs once the motor goes in which is tomorrow(FINALLY! ). Thanks in advance. Quote Link to comment Share on other sites More sharing options...
gpse3200 Posted November 2, 2002 Report Share Posted November 2, 2002 Gap them to .045 for the 3.1. The 3100 uses the .06 gap. One other thing the newest Rapidfires are not pre gapped, but they are close. Quote Link to comment Share on other sites More sharing options...
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