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big difference with headers?

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Old Jun 10, 2003 | 11:56 PM
  #1  
bigbullhunter's Avatar
bigbullhunter
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big difference with headers?

92 f250 351w- will headers make a big difference? are they worth buying?
 
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Old Jun 11, 2003 | 12:19 AM
  #2  
eckart's Avatar
eckart
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From: Kelowna B.C.
big difference with headers?

They won't make a set you back in your seat differance ,but along with a free flowing exaust and the K&N you already have will get you some extra hp.
 
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Old Jun 11, 2003 | 01:09 AM
  #3  
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big difference with headers?

is there any serious mileage gains with headers? i have a 1990 f-250 with the 351w as well.
 
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Old Jun 11, 2003 | 03:15 AM
  #4  
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From: Dallas, Texas
big difference with headers?

I noticed quite a power difference with some 1 5/8 shorties. The factory manifolds were horrible though.
 
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Old Jun 11, 2003 | 12:30 PM
  #5  
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fordmarshall111
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big difference with headers?

what kind of headers would you guys reccomend for a 5.8L? what gives performance gains at a moderate price?
 
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Old Jun 11, 2003 | 04:32 PM
  #6  
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From: Dallas, Texas
big difference with headers?

click here
 
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Old Jun 11, 2003 | 10:44 PM
  #7  
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big difference with headers?

the FMS shorty headers did make a seat of the pants difference on my 5.0. The milage didn't go up any, but that could be partly due to my new found heavier right foot.
 
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Old Jun 11, 2003 | 10:55 PM
  #8  
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F250ME
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From: Albuquerque, South Valley
big difference with headers?

I too am looking for a lift in milage and horse power.
I've had my truck for 9 months and recently learned that it
likes the expensive gas @91-92 octane otherwise pings.
 
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Old Jun 11, 2003 | 11:55 PM
  #9  
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big difference with headers?

Read this. Project MPG
 
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Old Jun 12, 2003 | 10:57 AM
  #10  
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From: Fl
big difference with headers?

I put headers into my V-10 E-350 and I got a noticable improvement in low-end "uumph" and leaving a stop with a heavy trailer. It feels like it breathes a lot better. It runs 2 degrees cooler than it did also but I did not notice more than about 1.5 mpg improvement and that could be because I have the van loaded to the max at all times and generally drive like Steve Mc Queen. I'm sure I lost about 35 pounds when I took the stock manifolds off though.
I would recommend headers.
 
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Old Jun 12, 2003 | 04:03 PM
  #11  
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Jimbo302
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From: Dallas, Texas
big difference with headers?

Originally posted by F250ME
I too am looking for a lift in milage and horse power.
I've had my truck for 9 months and recently learned that it
likes the expensive gas @91-92 octane otherwise pings.
My truck had the same problem when I first bought it. I ran some B12 through the tanks, and turned the timing down a tad. Hasn't had a problem running on cat **** ever since, even hauling a trailer.
 
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