Spark plugs

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Oct 21, 2007 | 07:40 PM

lt1tyrell

Thread Starter

Intermediate

Joined: Oct 2007

Posts: 42

Likes: 1

Spark plugs

I recently replaced my spark plugs in a 92 LT1 and i was wondering what type of plugs you guys have the best luck with? I used Bosch Platinums and then afterwards I heard they are no good.

Oct 21, 2007 | 08:21 PM

genefree3

Instructor

Joined: Aug 2007

Posts: 221

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From: Topeka Indiana

Spark plugs are like opinions and a--holes, everyone has one. I run Bosch in my 85 and autolites in my 427 so there you go. I don't even run plugs in my Cummins

Oct 21, 2007 | 08:43 PM

jsup

Team Owner

Joined: Oct 2004

Posts: 35,065

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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan

Don't waste your money on multiple electrode plugs. They are a waste of money.

Oct 21, 2007 | 11:59 PM

theadmiral94

Drifting

Joined: Sep 2003

Posts: 1,363

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From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ

Quote:

Originally Posted by lt1tyrell

I recently replaced my spark plugs in a 92 LT1 and i was wondering what type of plugs you guys have the best luck with? I used Bosch Platinums and then afterwards I heard they are no good.

lt1ytrell,

NGK Iridium (TR55-IX) here. too new to tell how they will do over time, but was impressed with construction and cleanliness in packaging (no metal shavings/cardboard nose).

By contrast, AC/Delco platinum plugs in car (25k +/-) had already lost 1 'puck', and new ones (platinum or iridium) had variations in 'puck' placement, metal shavings, and slight discolorations in porcelin.

Also, AC/Delco plugs in car had lost over 1/2 or their resistance -- very odd indeed.

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