rapidfire #1 or #5
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
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From: smithtown ny
raoidfire #1 or #5
i have a 91 vette with alumunium heads and i read somewhere that rapidfire number #5 is the plug to go with?? now i read on this forum that number #1 plugs are the ones for L98's if the tip of the plugs are white it's running lean??? so do i and more fuel just so they get a little tan??? also i gapped them at 40
Safety Car
Joined: Jan 2001
Posts: 4,386
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From: Boise ID
Re: raoidfire #1 or #5 (6spd)
#1's are for the iron heads (85-86.5 or so). As far as the lean condition, well, I'm not the best one to answer that question. I would think you should start with the correct plug and go from there...
Le Mans Master
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Re: raoidfire #1 or #5 (6spd)
Asked the same question and RapidFire #5 for Alum heads think gap is at 45.
Proper plug and gap in an AC Rapidfire for an 87 Vette is Rapidfire #5 gapped @ .045. Standard AC plug for 87 Vette is AC 41-629 gapped @ .035
Hope this helps
Proper plug and gap in an AC Rapidfire for an 87 Vette is Rapidfire #5 gapped @ .045. Standard AC plug for 87 Vette is AC 41-629 gapped @ .035
Hope this helps
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: raoidfire #1 or #5 (vinnies87)
Asked the same question and RapidFire #5 for Alum heads think gap is at 45.
Proper plug and gap in an AC Rapidfire for an 87 Vette is Rapidfire #5 gapped @ .045. Standard AC plug for 87 Vette is AC 41-629 gapped @ .035
Hope this helps
Proper plug and gap in an AC Rapidfire for an 87 Vette is Rapidfire #5 gapped @ .045. Standard AC plug for 87 Vette is AC 41-629 gapped @ .035
Hope this helps
Rapidfire's rock!
