2007年7月26日 · Also NGK specifies the TR55ix with the 0.044" gap for the 2000 LS1. Further supportive of the 0.044" gap is the NGK TR55ix (iridium) plug has a 4.6k ohm resistance, …

2005年2月3日 · C5 Tech - NGK TR55 OR NGK TR55ix ?????????????? - I am running the delco plat plugs now. The referalls seem to lead towards the ngk but for the TR55 OR TR55IX? …

2005年1月13日 · C5 Tech - NGK TR55IX iridiums have different LS1 gapping recommendations. Anyone know why? - According to the NGK website, recommended gapping for the TR55IX is …

2006年10月18日 · C6 Tech/Performance - ngk tr55ix gap - anyone know what gap to use on the ngktr55 iridium plugs .

2008年5月6日 · C6 Tech/Performance - Don't Buy Ngk Tr55ix Spark Plugs - OK, i ordered NGK55IX spark plugs for my car. it comes pre gap at .059. the web-site says gap it to .044. i …

2008年9月12日 · C4 Tech/Performance - NGK TR55ix Gap...the real thing? - Hi everyone I have a friend who is a little down on his luck. I did a search and came up with 0.35 to 0.65 as a gap …

2007年4月30日 · C5 Tech - If you are running NGK TR55IX, what is your gap - OK, you may have seen my other post, but I just wanted to check and see how many people are running the NGK …

2003年4月25日 · C5 Tech - Gap for NGK TR55IX spark plugs??? - My manual calls for a .065 spark plug gap, but I saw .050 listed for the NGK spark plugs. For those who have installed …

2003年7月21日 · Re: What's all the fuss about TR55IX plugs? (Richin Chicago) I don't have the iridium plugs, just the regular copper TR55's, but the car did seem to run a little smoother after …

2015年4月20日 · The previous AC Delco plugs were the 41-931 (gap .60). They have been replaced by the AC Delco 41-110 (gap .40). You can also use the NGK TR55IX.