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Jan 23rd, 2013
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Headers..... #13965611 04/19/21 04:52 AM
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To get a little more HP and torque out of my 04' F150 4.6L, I am thinking about getting a set of shorties. I'm not sure which ones I should get. Looking at a budget cost of around $500.00 for the set. Do you have an older truck with headers? Was there any improvement HP wise, mpg, towing? I have quite a bit of work done on my trk, front to back. This add-on is about the last thing I want done, other than a new paint job and a set of Cragar's. Any info and advice will be appreciated here..

Last edited by V-Bottom; 04/19/21 04:55 AM.

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Re: Headers..... [Re: V-Bottom] #13965621 04/19/21 06:49 AM
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as far as shorties go on that 4.6, it would be nothing more than an exhaust manifold swap and you won't gain a thing. unless your pushing over 500hp and going with long tube headers, your just wasting your time and money. the stock manifolds, per say, flow good to 500hp. the restriction comes from the catalytic converters, so for a significant gain across the board, go with high flow cats. that's my story and i'm sticking to it


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Re: Headers..... [Re: V-Bottom] #13965805 04/19/21 02:03 PM
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Yeah your not going to gain anything, especially not in any kind of usable rpm range.

Re: Headers..... [Re: redchevy] #13966063 04/19/21 05:59 PM
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Originally Posted by redchevy
Yeah your not going to gain anything, especially not in any kind of usable rpm range.


Thanx to both of you. I think I just made up my mind NOT to get any !!


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Re: Headers..... [Re: V-Bottom] #13966134 04/19/21 06:59 PM
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He will gain something......AN EXHAUST LEAK! bolt


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Re: Headers..... [Re: SteezMacQueen] #13966262 04/19/21 09:10 PM
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Originally Posted by SteezMacQueen
He will gain something......AN EXHAUST LEAK! bolt


Most likely!!


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Re: Headers..... [Re: V-Bottom] #13966271 04/19/21 09:21 PM
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Good call, I've run headers on several vehicles over the years. I never put headers on as the only modification, always combined with cam, intake, carb and sometimes heads. On older carbed vehicles, all headers alone would get you was a lean condition.


Re: Headers..... [Re: Cmack] #13966454 04/20/21 12:28 AM
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Originally Posted by Cmack
Good call, I've run headers on several vehicles over the years. I never put headers on as the only modification, always combined with cam, intake, carb and sometimes heads. On older carbed vehicles, all headers alone would get you was a lean condition.


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Re: Headers..... [Re: V-Bottom] #13967069 04/20/21 04:43 PM
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Many times aftermarket add on's may improve PEAK horsepower, but many times the power in normal operating ranges can be the same or worse.

What is good for screaming down a race track at 5000+ rpm is not the same as what is best for what your average joe is looking for in a daily driver. While I wont say the auto manufacturers are perfect by a long shot, they build what they build for a reason.

Re: Headers..... [Re: redchevy] #13967135 04/20/21 05:44 PM
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Originally Posted by redchevy
Many times aftermarket add on's may improve PEAK horsepower, but many times the power in normal operating ranges can be the same or worse.

What is good for screaming down a race track at 5000+ rpm is not the same as what is best for what your average joe is looking for in a daily driver. While I wont say the auto manufacturers are perfect by a long shot, they build what they build for a reason.


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