What year has the most horsepower, from 2002 thru 2005 Thunderbirds?
2002 3.9 V8 252 HP. 2003 to 2005 3.9 V8 280 HP ...VVI Variable Valve Timing was added in 2003
The HIGHEST IN STOCK FORM IS THE 2003-2005 @ 280.hp That is a good starting point if you want to push it up with3rd party goodies
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