Better Headers for 351W
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Better Headers for 351W
Was thinking one of the two options below. Will take opinions on any others. Ordering soon. Camshaft here already and about done pullin out the motor.
Hooker
Hooker Headers 6912HKR - Hooker Competition Headers - summitracing.com
Headman
Hedman Hedders 89270 - Hedman Street Hedders - summitracing.com
Was reading through and it looks to me like the headman contains the parts to keep all the emissions stuff. Want to keep EGR and location of the O2, but the pipes will no doubt have to be custom fitted.
Hooker
Hooker Headers 6912HKR - Hooker Competition Headers - summitracing.com
Headman
Hedman Hedders 89270 - Hedman Street Hedders - summitracing.com
Was reading through and it looks to me like the headman contains the parts to keep all the emissions stuff. Want to keep EGR and location of the O2, but the pipes will no doubt have to be custom fitted.
Posting Guru
Joined: Jul 2004
Posts: 2,244
Likes: 2
From: Cottage Grove, WI
I have the hooker comp headers on my 351W and i love them. been on for 3 years now, and they are not warped, no cracks, nothing. I have been VERY happy with them
EDIT: Just reread you post, and yeah, i dont have any of the emissions on my truck any more. When i got my exhaust done out the back, i had them weld in a new O2 bung, but as for the EGR, i dont think it would be possible to keep it w/ the hookers. But after looking at the headmann, i dunno how they would keep the egr either...
EDIT: Just reread you post, and yeah, i dont have any of the emissions on my truck any more. When i got my exhaust done out the back, i had them weld in a new O2 bung, but as for the EGR, i dont think it would be possible to keep it w/ the hookers. But after looking at the headmann, i dunno how they would keep the egr either...
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
EDIT: Just reread you post, and yeah, i dont have any of the emissions on my truck any more. When i got my exhaust done out the back, i had them weld in a new O2 bung, but as for the EGR, i dont think it would be possible to keep it w/ the hookers. But after looking at the headmann, i dunno how they would keep the egr either...
Posting Guru
Joined: Jul 2004
Posts: 2,244
Likes: 2
From: Cottage Grove, WI
I get right around 7 myself. Im surprised thats all you get. Back when my truck was stock i got almost 11. And the EGR doesnt really help w/ idle. The O2 is important, its what adjusts your fuel trim, i would keep that, but personally i noticed no difference when i got rid of my EGR
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
I get right around 7 myself. Im surprised thats all you get. Back when my truck was stock i got almost 11. And the EGR doesnt really help w/ idle. The O2 is important, its what adjusts your fuel trim, i would keep that, but personally i noticed no difference when i got rid of my EGR
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Also, Blue Rebel, you fit 38's up under those wheel wells with no problems? Thats with the 4in lift correct? Im looking into a 4in lift, but I haul alot of heavy weight and am not sure if the lifts will hold up to what I use the truck for. I may use a few add-a-leafs on the back and one in the front.
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Posting Guru
Joined: Jul 2004
Posts: 2,244
Likes: 2
From: Cottage Grove, WI
For the rear i used their block lift, so its still the F250 leaf springs. the 38s fit, but they do rub the fenders when i turn. I really need to either step up to a 6" or get cut out flares. Im probably going to go w/ the fender cut outs. 36s fit perfectly
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Posting Guru
Joined: Feb 2007
Posts: 1,006
Likes: 2
I would go with the Hookers, thicker flanges. Thicker flanges are less prone to warping, the 3/8" flange is part of what sold me on my headers.
The platinum vs. non-platinum debate is interesting. My grandpa always ran Bosch Platinums in my 351 and I have continued using Bosch. My dad has always ran Bosch in his '94 F150 with the 302 and his '97 F250 with the 460. We have found them to perform good and be great. I have never seen one foul out. The set that was in my truck when I got it from my grandpa was 4 years old and they looked fine when I replaced them. I guess some people have had problems though, but we have not in 15 years of running Bosch.
The platinum vs. non-platinum debate is interesting. My grandpa always ran Bosch Platinums in my 351 and I have continued using Bosch. My dad has always ran Bosch in his '94 F150 with the 302 and his '97 F250 with the 460. We have found them to perform good and be great. I have never seen one foul out. The set that was in my truck when I got it from my grandpa was 4 years old and they looked fine when I replaced them. I guess some people have had problems though, but we have not in 15 years of running Bosch.
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Thanks for the info 1994 F250: 351, C6. Im just going to change these because I am running out of options. This mileage is horrible and hope it changes when I get the cam and headers and do this complete tune-up.
Posting Guru
Joined: Feb 2007
Posts: 1,006
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Yeah, I can understand that. My truck was getting a wopping 8 mpg on the highway when I got it from my grandfather. I got new plugs, wires, cap, rotor, and exhaust. Now it gets about 10 to 11 around town and a steady 13 to 14 on the highway (it got 15 my first trip after I got my headers and y-pipe) at 55. Hopefully a good tune up will fix your problem. If your motor is otherwise in good shape and you can keep your foot out of the pedal (it's hard when it sounds good) you should get a nice mileage improvement. Post your results when you're done. Good luck!
More Turbo
Joined: Sep 2003
Posts: 630
Likes: 4
From: Northeast
I hope this won't seem like a "hijack," because I think it may be of interest to the O.P. as well:
I noticed that the specs at the Hedman link indicated that the headers are not "tuned."
I know this seems like a dumb question, but what is the difference between "tuned" and "untuned" headers?
Also, what do people mean when they say a "true" dual exhaust?
Thanks,
BigSix1
I noticed that the specs at the Hedman link indicated that the headers are not "tuned."
I know this seems like a dumb question, but what is the difference between "tuned" and "untuned" headers?
Also, what do people mean when they say a "true" dual exhaust?
Thanks,
BigSix1
Senior User
Joined: Dec 2007
Posts: 348
Likes: 1
From: Lutz, FL
Senior User
Joined: Dec 2007
Posts: 348
Likes: 1
From: Lutz, FL
I hope this won't seem like a "hijack," because I think it may be of interest to the O.P. as well:
I noticed that the specs at the Hedman link indicated that the headers are not "tuned."
I know this seems like a dumb question, but what is the difference between "tuned" and "untuned" headers?
Also, what do people mean when they say a "true" dual exhaust?
Thanks,
BigSix1
I noticed that the specs at the Hedman link indicated that the headers are not "tuned."
I know this seems like a dumb question, but what is the difference between "tuned" and "untuned" headers?
Also, what do people mean when they say a "true" dual exhaust?
Thanks,
BigSix1
When people talk about 'true' duals, each side of the engine runs out it's own exhaust to the back or side of the truck. The two sides never collect together. The only way to gain performance from true duals is the exhaust for each side has to be the same length to where each exit. Hard to do on our trucks since the drivers side exhaust usually has to run over to the passenger's side to go around the fuel tank, making it longer than the passenger side. Hope this helps.
Fleet Mechanic
Joined: Apr 2008
Posts: 1,724
Likes: 2
From: Vancouver BC Canada
I'm also looking at headers and the ones I'm interested in are Pacesetter longtubes part# 70-2221. They're the only longtubes I've found listed for the 351 in our trucks that come with the egr bung.