4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

5.4 swap

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Old Mar 31, 2010 | 08:30 PM
  #1  
mark a rittenhouse's Avatar
mark a rittenhouse
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From: tx.
Default 5.4 swap

have a 01 mustang gt switching out to 5.4 2 valve. what long tube headers work? any ideas?
Old Mar 31, 2010 | 09:14 PM
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liljojo4711
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only one set and they are $1200
Old Mar 31, 2010 | 11:41 PM
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MU71L4710N
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yeah they are extremely expensive. longtubes for a 2v mustang will not work without some custom fabrication (they aren't long enough because of the taller deck height on the 5.4).
Old Apr 1, 2010 | 04:24 PM
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amoosenamedhank
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It's not that they aren't long enough... the taller deck height of the engine makes the headers hit the firewall/floor.
Old Apr 3, 2010 | 06:44 AM
  #5  
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Originally Posted by amoosenamedhank
It's not that they aren't long enough... the taller deck height of the engine makes the headers hit the firewall/floor.
i have mack long tubes they are hitting on the steering shaft and frame rails so i went with ford racing shorties hated to loose the upper end horse power b ut had no choice dont really have 1200 bucks this engine build has been exspensive!
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