Spark Plugs and New heads
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Spark Plugs and New heads
The head manufacturer mentions this on their website.
Spark Plug Suggested Starting Range only, C57C
Is this a specific spark plug?
Spark Plug Suggested Starting Range only, C57C
Is this a specific spark plug?
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From: Massachusetts
I am not positive but I believe that that plug will fit in the dart pro 1 heads. It can be cross referenced to about 3 other plugs and is not specific.Im pretty sure that was one of my options when getting plugs. 
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Thread Starter
Supreme Member
Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by RB83L69
http://www.edelbrock.com/automotive/sparkplugs.html
http://www.edelbrock.com/automotive/sparkplugs.html
Thanks :hail:
Now, to see if the idiots at Autozone will know what the heck I'm talking about
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Re: Spark Plugs and New heads
Originally posted by Mark A Shields
The head manufacturer mentions this on their website.
Spark Plug Suggested Starting Range only, C57C
Is this a specific spark plug?
The head manufacturer mentions this on their website.
Spark Plug Suggested Starting Range only, C57C
Is this a specific spark plug?
it is WAY too cold and will foul in a short time.
Find out what type of plug your heads use and get
a set in a streetable heat range.
I would start with a Champion RC12YC for this motor.
With pro action aluminum 23 deg heads.
Be sure to put a little antiseize on the plug threads before
installing them. Gap them @ .035"/.040"
Last edited by F-BIRD'88; Mar 27, 2003 at 09:25 AM.
Thread Starter
Supreme Member
Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Re: Re: Spark Plugs and New heads
Originally posted by F-BIRD'88
A C57C is a racing only plug. Do not use on the street.
it is WAY too cold and will foul in a short time.
Find out what type of plug your heads use and get
a set in a streetable heat range.
I would start with a Champion RC12YC for this motor.
With pro action aluminum 23 deg heads.
Be sure to put a little antiseize on the plug threads before
installing them. Gap them @ .035"/.040"
A C57C is a racing only plug. Do not use on the street.
it is WAY too cold and will foul in a short time.
Find out what type of plug your heads use and get
a set in a streetable heat range.
I would start with a Champion RC12YC for this motor.
With pro action aluminum 23 deg heads.
Be sure to put a little antiseize on the plug threads before
installing them. Gap them @ .035"/.040"
Thanks for the help, will do . Now to return these AC Delcos I picked up earlier, before I realized the importance
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