370Z Plug freshen up. Autolite Iridiums any good?

Nissan 350z / Nissan 370z technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
JArnoldsZ
Posts: 2
Joined: Mon Sep 04, 2017 9:09 am
Car: 09 370Z, Silver Touring Sport package, 6Spd, Stillen Cold Air Intake and Exhaust.

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Autolite plugs any good for our 370Z's? 6.49 versus the 10.00+ Densos? Not to worried about performance but mostly the Thread match to our heads. This is usually the biggest issue. Anyone use these and have an evaluation?

** New to this forum. I am sure this has been discussed? Sorry but I don't see a Search? Maybe its just Monday and I can't think?


amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

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The biggest issue is heat range migration when you change the brand of plug, they never cross over to be exactly the same. I don't have a clue as to why threads would be an issue as the same tooling is available to all plug makers. But IF there was an issue then likely again because someone jumped brand there.

Ybountie
Posts: 2
Joined: Mon Nov 12, 2018 2:24 am

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Can you help me? Consultation In the story I never knew before.

chasracer2
Posts: 12
Joined: Sun Feb 07, 2016 7:39 am
Car: 2003 GT350

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Yes they are good to go, no problems with thread pitch or temperature range.


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