New Spark Plug Number

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Jul 27, 2009 | 03:50 PM

robsc501

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From: LEBANON PA.

New Spark Plug Number

Hi There:
Spark plug number 41-985 has been superseded by 41-110 for the ls1. But as before if the gap is not .040 do not use or re-gap.
robsc501

Jul 27, 2009 | 04:59 PM

jimcork1

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From: Slidell La

Quote:

Originally Posted by robsc501

Hi There:
Spark plug number 41-985 has been superseded by 41-110 for the ls1. But as before if the gap is not .040 do not use or re-gap.
robsc501

?? is that a GM part number? I have been running NGK's that came in the car new.

Jul 27, 2009 | 06:58 PM

robsc501

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From: LEBANON PA.

Hi There:
That is a a/c delco p/number. I saw a pack of them at a gm parts place today.I should have copied the gm number down but did not.Next iridum plugs you get will be 41-110.
robsc501

Jul 27, 2009 | 07:18 PM

jimcork1

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From: Slidell La

Quote:

Originally Posted by robsc501

Hi There:
That is a a/c delco p/number. I saw a pack of them at a gm parts place today.I should have copied the gm number down but did not.Next iridum plugs you get will be 41-110.
robsc501

Guess what confused me was I thought 1260987 was the GM iridium plug.

Jul 27, 2009 | 07:42 PM

Gene Culley

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Joined: Nov 2006

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From: Reading PA

Yes, we got a new part number in the last couple of weeks.

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