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Spark Plugs #471238 09/17/09 08:42 PM 09/17/09 08:42 PM
Joined: Jan 2006 Posts: 28 indiana P ply71 OP member
ply71 OP member P Joined: Jan 2006 Posts: 28 indiana	What kind of spark plugs to use in the 440 Source Stealth heads. Thanks 5489097-1969Dodge084.jpg (50 downloads)

Re: Spark Plugs [Re: ply71] #471239 09/17/09 09:52 PM 09/17/09 09:52 PM
Joined: Nov 2004 Posts: 843 Suffolk,VA I ireland383 super stock
ireland383 super stock I Joined: Nov 2004 Posts: 843 Suffolk,VA	I use what was recommended Rc12yc champions extended reach. They have them at local auto parts stores. Others have used NGK's Fr5's. There is a older post. Do a search what spark plugs with stealth heads?

Re: Spark Plugs [Re: ireland383] #471240 09/18/09 10:49 AM 09/18/09 10:49 AM
Joined: Jan 2007 Posts: 780 Woodinville, WA Viol8r super stock
Viol8r super stock Joined: Jan 2007 Posts: 780 Woodinville, WA	It really depends on your compression. The NGK FR-5 will work, but in my case I have 10.8:1 and in turn I needed a colder plug. NGK BCPR6E-11 NGK BKR6E-11 (slightly shorter plug)

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