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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Old 05-12-2008, 06:32 PM
442w30 442w30 is offline
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2008 5.4 head design

Have read all the Threads and posts re: the Spark Plug issues. One of the reasons I traded my 05 with 90,000 mi on it. Is there anything different about the 08 heads other than one piece plugs?
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Old 05-12-2008, 08:36 PM
moonlighter moonlighter is offline
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The only one's that have new plugs and heads are the one's with eng. build date after 10/07/2007.
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Old 05-12-2008, 11:08 PM
442w30 442w30 is offline
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Thanks moonlighter, my engine has a build date of 2/25/08. What I would like to know is what is the real difference between the old and new design of the heads. I've read that the new plugs are shorter.
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Old 05-12-2008, 11:08 PM
 
 
 
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