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View Full Version : spark plug gap


camaro2you
03-29-2006, 06:54 PM
hey guys whats the plug gap for an ls1 thanks in advance.

ins0mnia24
03-29-2006, 10:57 PM
I did mine at .55 with NGK-IX Iridium spark plugs and the Red GM Z06 or LS6 Wires.
But i know it says .60 for stock but alot of people go between .50 - .60 depending on preference i guess but i just went with what my friends that have LS-1's set theirs since they said it worked good

Tsar
03-30-2006, 12:03 AM
ive heard .50...but im not sure.

1984camaroz28
04-02-2006, 05:14 PM
depends what plugs ur gona run

rgaynor85
04-11-2006, 09:51 AM
the acdelcos iridiums are pregapped so u dont need to touch em, denso's are the same way and ran good in my car the NGK tr-55's i tried gapped at .055 and they ran ok but when i pulled them they had more black on them than the iridiums did after who knows how long.

LS1Hawk
04-11-2006, 12:00 PM
Yeah, I got the service manuals for 2001 recently and they indicate the gap at .060 for the 5.7L. Not sure what it is for the V6, but who cares.