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351C Sparkplug Help! 351C Sparkplug Help!
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Old 04-26-2003, 10:31 PM
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Join Date: Mar 2003
Location: Brea, CA,
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Default 351C Sparkplug Help!
I did the initial startup of my 70 351C. Fired and ran great within a few seconds of the turn of the key. Then things went down hill. I noticed leaking around the spark plugs. Upon inspection the heads have a flat land at the plug thread and the plugs installed are beveled without a compression seal. Obviously not compatible. Unfortunately 4 parts stores all call out the plug which is obviously wrong... Any help or numbers for the right plugs?
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