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Choosing The Right Spark Plugs For Your Custom Engine

Don't Get it Wrong! Know Something About Reach and Heat Range and Everything Else You Need to Pick the Right Plug.

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SOURCES
Autolite
800-890-2075
www.Autolite.com
Federal-Mogul
26555 Northwestern Hwy.
Southfield
MI  48034
248-354-7700
www.federal-mogul.com
Bosch Mr. Gasket Co.
8700 Brookpark Rd.
Cleveland
OH  44129
Denso Sales California
3900 Via Oro Ave.
Long Beach
CA  90810
www.densoiridium.com
NGK Spark Plugs
Wixom
MI
www.ngksparkplugs.com
E3 Spark Plugs
www.e3sparkplugs.com
Zex
3418 Democrat Rd.
Memphis
TN  38118
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13 comments
David Rico
David Rico

Cold as they get,blown methanol don't foul.

Dean L. Thomas
Dean L. Thomas

dont even go there. do your own reaserch and order parts by #'s

Brian Bavington
Brian Bavington

lots of good info but got a? i came to this site trying to find a good plug to run in a pare of 305 marine engines caribrated engines here my problem engines run cold for long periods of time at low rpm it seems to me that all new plugs with the gas of to day seem to foul and unable to clean them self's  i have had great luck with ND plugs IN THE PAST how dose one find a replacement for a older engine by that i mean colder running except under load then hotter than hell not water temp head temp crack porcelain then the plug fouls  w16epru  i think was the plug i was running and i will be darn if i can keep track of the heat range any more 

野口強
野口強

モロソ オイルパン!

Jeff Griffith
Jeff Griffith

Well that was pretty vague! Lol That's just common sense to most of us, maybe explain the heat range next time?

Briisdow Vergara
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Drue Taylor
Drue Taylor

One steep colder worked great for me 10.3:1 dodge 406 big block. Motorcraft plug of course

Karl Loper
Karl Loper

Try explaining heat range period to the counter monkeys.

Johnny Baker
Johnny Baker

Try explaining you need a colder heat range plug for your aftermarket aluminum chevy heads to the dufus at the parts store and they stare blankly and ask "what year?"

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