best spark plugs for LS1
#3
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For an NA combo I would go NGK TR55's. You will have to replace them more frequently than say a Delco but for the price and performance, you can't beat them. If you plan on putting a small power adder on the car, I would change to a TR6 from NGK. Let me know if you need a set. We have several of both on the shelf.
Jon
Jon
#4
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I put the platnum NGK TR55's in my car, I wonder how long they will last.
See link...
https://ls1tech.com/forums/generatio...omend-why.html
See link...
https://ls1tech.com/forums/generatio...omend-why.html
#5
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Well if your LS1 is a picky bastard like mine you will run the stock AC Delco 41-110. I had tried the NGK's in my 99 T/A and had no issues. Used them in many other cars as well. Well got my 04 GTO and installed the NGK's and it ran like crap. Had random miss fire codes and so i bought some more plugs ( same NGK's ) still doing it. Changed wires. Kept doing it. Said screw it bought the AC Delcos and never had a miss fire since.
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#11
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i have the NGK TR6s...i will be installing them tomorrow. does anyone know off the top of their head what the gap is supposed to be? if i remember correctly its .5 but could be wrong.
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