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What is the correct spark plug gap for a 2010 ram 5.7 hemi. I've seen from .40 to .45 gap. So which is it. can anyone give me the correct gap. thanks
Spark plug gap 2010 5.7 hemi
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Hemis are about the least fussy motor ever as far as plugs go. My 05 calls for a .45 gap, but I've run a .35 gap because I used to spray nitrous. Never had a problem, used to replace every 50,000 miles, now I have 85,000 miles on the Champion cheap ass copper plugs in my Magnum, going for 100,000 miles. It runs perfect. I believe gapping at .40 vs .45 may help getting more miles, but from what I've seen, don't waste money on expensive plugs.
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