5.4L swap?

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Jun 30, 2014 | 01:43 PM

#16

BFTUFF

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Joined: Mar 2011

Posts: 462

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From: MN

Quote:

Originally Posted by fe390pc

Yes it is stainless for the tube. I just replaced mine with an OEM Ford part. The one that came off and the one that went on are both Stainless, but the thread clamp is steel.

Thanks, a useful bit of information for me.

Jul 11, 2014 | 02:32 PM

#17

Shernius

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Joined: Feb 2003

Posts: 392

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From: New Jersey

Just curious as to how much horse power you might be gaining on this? I drive a 03 Expedition at work with 189k on it and it has more get up and go than my 99 with 148k.

Jul 12, 2014 | 05:18 PM

#18

BFTUFF

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Joined: Mar 2011

Posts: 462

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From: MN

Quote:

Originally Posted by Shernius

Just curious as to how much horse power you might be gaining on this? I drive a 03 Expedition at work with 189k on it and it has more get up and go than my 99 with 148k.

It may be a difference in differential gear ratio between the two?

I will gain 30 hp swapping the 98' NPI to the 03' PI, plus 10-15 more on the shorty headers, more still switching to E-fans plus all the HP my tired OE 5.4L lost. There'll be a big difference in my situation.