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03 or 04: need your advice
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06-24-2009, 08:41 AM
Patman03SprCrw
Technical Article Contributor
Join Date: Aug 2005
Location: DFW
Vehicle: two 2003 F-150s
Posts: 10,752
03 would be more reliable because it doesnt have either spark plug issue. if you are wanting more perormance, and poasibly boosting the 04 has better head (except the spark plugs) and an updated stronger block
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