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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old 04-30-2010, 04:27 PM
daddyhock daddyhock is offline
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header ques. 1994 f250 5.8

Hey guys, need some help
my 351 windsor/5.8 has the stock exhaust manifolds that i want to change over to a pair of shorty headers.
the problem i have been having is finding headers that have the threaded
bungs on them for my emissions... my driver side header has a threaded pipe that is off the back(next to firewall) passenger side has threaded pipe that turns upwards and has something attached to it ..but all the headers i find dont look like they have these...any help would be great..
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Old 04-30-2010, 05:59 PM
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Where does the fitting on the driver's side lead to? None of my Lightnings or my current '92 F350 w/5.8L engine has any attachments on the driver's side. There is a EGR pipe fitting on the passenger side.
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Old 04-30-2010, 06:08 PM
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Does your truck still have a cat or even more important do you have emissions tests to pass? If not then remove the smog plumbing and install the headers you want.
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
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Old 04-30-2010, 06:15 PM
daddyhock daddyhock is offline
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The pipe on the driverside,turns and goes behind the head and is hooked to something back behind the head and intake
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Old 04-30-2010, 06:37 PM
daddyhock daddyhock is offline
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yes it still has the cat. it also has a smog pump,and no i dont have any emmissions tests where i am. but i dont want to have to take the smog pump off?i would assume my truck has the california emissions.
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Old 04-30-2010, 07:05 PM
MCarlson MCarlson is offline
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I just put the Bassani's on my Bronco. Too soon to tell exactly how much better everything runs or not but I can tell you they bolted in perfectly. Got the new y-pipe from them at the same time. You get what you pay for and installation wise I can say the Bassani set up was worth the money.
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Old 04-30-2010, 09:21 PM
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Originally Posted by daddyhock View Post
yes it still has the cat. it also has a smog pump,and no i dont have any emmissions tests where i am. but i dont want to have to take the smog pump off?i would assume my truck has the california emissions.
The smog(air) pump does not have to come off if you remove the smog plumbing, you could just leave it there as an idler.
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
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Old 05-01-2010, 06:54 AM
daddyhock daddyhock is offline
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ok, if i take off the smog plumbing and leave the pump,wouldnt there be some kind of noise like pushing air coming from the smog pump?and if the egr is what is out of the passenger side exhaust manifold,all the headers i am seeing does not have a threaded bung for the egr either?
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Old 05-01-2010, 10:03 AM
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Originally Posted by daddyhock View Post
ok, if i take off the smog plumbing and leave the pump,wouldnt there be some kind of noise like pushing air coming from the smog pump?
Not if you reattach the outlet muffler directly to the pump and leave the intake muffler as is. Those are the two cylindrical things on the passenger inner fender right behind the battery.

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Originally Posted by daddyhock View Post
and if the egr is what is out of the passenger side exhaust manifold,all the headers i am seeing does not have a threaded bung for the egr either?
Smog legal headers for these trucks will have EGR and O2 bungs and some may even have the smog attachments. These bungs are clearly visible on these Ford Shorty headers for example. Do a search on the Summitracing web site and you'll see literally dozens of headers for this truck, most of them with these fittings.
Click the image to open in full size.
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
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Old 05-01-2010, 12:11 PM
daddyhock daddyhock is offline
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@conanski those in the picture are exactley what i need,and those are the frrp..but they are 450.00 , i was wanting half as cheap..but if i cant find any cheaper i will go with those..all other pics on summit look like a un threaded tube out the front of the passenger side exhaust header, and they all look to big for my pipe to thread to...but thanks for all the help i think i just might go with the frpp. and my o2 sensor is just a few inches in front of my cat? if that helps
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Old 05-01-2010, 02:16 PM
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I believe Conanski has a photo of welding on a threaded bung to screw the O2 sensor into the headers. Pretty cheap fix.
The only things I would say about installing headers is somethimes the more expensive ones fit better. I picked up some inexpensive headers and had to massage (hammer and punch) the exhaust tubes around the nut area for several nuts. I had to put in studs to support some of the misc parts and pieces - ie the dip stick holder, fuel injection support brackets, smog housing...
The other thing I took away from this installation was not to bother with ceramic coating as the coating was compromised during the "massage". Pain to clean then paint with high temp.
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Old 05-01-2010, 02:41 PM
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Originally Posted by daddyhock View Post
@conanski those in the picture are exactley what i need,and those are the frrp..but they are 450.00 , i was wanting half as cheap..
You're shoping in the wrong place, they're only $329 at Summit. Those Ford shorties are stainless steel too so they'll last forever. Ford Racing M-9430-T58 - Ford Racing Hi-Flow Shorty Headers - Overview - SummitRacing.com

Painted Flowtech headers are much cheaper but you may want to check with them before buying to find out of the EGR fitting on this is threaded to accept the factory EGR tube.. Flowtech 91668FLT - FlowTech Headers - Overview - SummitRacing.com

Pacesetter headers are another brand a few guys have had good luck with.. PaceSetter Performance 70-1323 - PaceSetter Headers - Overview - SummitRacing.com
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
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Old 09-04-2014, 05:19 PM
sainsane sainsane is offline
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smog and headers

I do have California emissions on my 96 f-150 5.8L I was hoping to get info with putting them on and removing the cats completely for better exhaust flow. Do need to have the computer re-flashed or what do you recommend
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Old 09-04-2014, 07:03 PM
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Originally Posted by sainsane View Post
I do have California emissions on my 96 f-150 5.8L I was hoping to get info with putting them on and removing the cats completely for better exhaust flow. Do need to have the computer re-flashed or what do you recommend
Welcome to FTE!

Please start your own thread instead of tagging onto a 4 year old thread.
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