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Re: Spark Plugs Types for 194 - 292 L6 jckc #44618 10/25/08 09:50 PM
Joined: Jul 2000 Posts: 4,622 Likes: 25 Palatka FL. USA Twisted6 1000 Post Club
Twisted6 1000 Post Club Joined: Jul 2000 Posts: 4,622 Likes: 25 Palatka FL. USA	The 404 is a OLD autolite plug which is a 13/16 plug which has a compression ring at the base. The skinny plug is a 5/8 plug with a tappered seat. Larry/Twisted6 [oooooo] Adding CFM adds boost God doesn't like ugly.

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Inliners International Forums General Discussion Engines Spark Plugs Types for 194 - 292 L6