ngk plugs
If you don't like changing plugs as often run tr6ix iridiums they should last many thousands of miles.I run them on my boosted cars. If you are going really high boost you could even go to tr7ix. the iridiums don't foul up like the copper ones can in around town driving so you can go colder and not have problems for extra safety.
You can also gap them down if you are careful don't use wheel gapper and don't contact the electrodes they are delicate.
If you don't have headers doing plugs in an lt1 is nasty nasty. Ask me how I know! LOL
You can also gap them down if you are careful don't use wheel gapper and don't contact the electrodes they are delicate.
If you don't have headers doing plugs in an lt1 is nasty nasty. Ask me how I know! LOL
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LOL yea its a lt1 the tr55's are brand new and i just put them in and we all know how changing plugs on a lt1 with long tubes can be 
but i ordered the tr6's yesterday 
i will pull then tr55's out and give them to my boi he has a mustang wit motor work they would be better then the auto lite plugs he's running now thanks again everyone
but i ordered the tr6's yesterday i will pull then tr55's out and give them to my boi he has a mustang wit motor work they would be better then the auto lite plugs he's running now thanks again everyone 2X vote! It ONLY took me 4 hours Tuesday to replace all 8 plugs and plug wires - having said that, my first attempt at replacing just the plugs ONLY took 6.25 hours! I guess that's better, right?
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going to install the autometer phantom gauges this weekend while i wait on my parts i hate waiting LOL Thats why I run iridiums in all my cars.
Get mac headers on the lt1 makes plug changes 15 minutes. I would still run idiriums regardless though.Don't like changing plugs yearly. Every time you change plugs you risk stripping out threads,wrecking wires,etc. Be sure of course to use antiseize.
Get mac headers on the lt1 makes plug changes 15 minutes. I would still run idiriums regardless though.Don't like changing plugs yearly. Every time you change plugs you risk stripping out threads,wrecking wires,etc. Be sure of course to use antiseize.
Gap around .028 to .030 I would say. As for how long a year maybe depending on miles.I can see using them in cars like my talons that you can do plugs easily in like 10 minutes.
I would for sure put mac headers in your car if you want to start changing plugs yearly.
I would for sure put mac headers in your car if you want to start changing plugs yearly.
