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5.4 swap

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What makes the extra 75 HP between the 1998 and 1999 GTs?  Computer, cams....?



1996 to 1998 is the same for all SOHC Mustangs, you can install a 1999 to 2004 4.6 SOHC "PI" engine, which has better intake manifold, cylinder heads and cams....but you will have to change the front timing chain cover to your year and if you get a 99/00 you'll have to get a different flywheel to as your car, being a Romeo engine has a 6 bolt flywheel and 1999/2000 are Windsor engines and have a 8 boly flywheel....

what if it was the gt500 5.4


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