Thread: Best plugs for 5.4L
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Old 02-03-2013, 09:29 AM
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bigunit54
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Originally Posted by docweld
Define late build, Mine is a 3/07 build.
It's after November of 2007. I don't know if any of them with the new head design would even be 07 models, they should all be 08's.
 
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