I have been searching the web looking for headers & exhaust system for a 93-F 350 with a 7.3, I found the exhaust system but no headers. Can someone help me out here? Is there anything that I should know before I do this? Thanks

 

FWIW Stans headers makes and sells them just google it...

Note: I have heard no good results from any who have installed them.......

 

there is a company that makes headers. stans headers not sure of the site but there have been lots of discussions about them around here. no one makes a kit an to bolt to the headers it will be custom. i think the headers run 400-500. im sure someone will post the site. the company that makes them says youll see about 40- 50 horse power gain with a healthy motor. as far as bolt on exhaust systems some people said that they have had good luck with the dynomax kit. its about 300 complete. i know there are a few more kits avalible out there. i personaly did not like any of the kits and made my own system with 4" pipe it sounds good and has almost no restriction on the exhaust.
mike

 

I went to stans, there headers are for 94 & up models with powerstroke

 

do a search in this forum there have been lots of discussions on these youll find some good information.

 

Then you must've missed KJLYPW's thread about them. He is VERY happy with them.....

http://www.stans-headers.com/ford_headers.htm

....about 3/4 of the way down the page - just above the 4-cylinder headers section.

 

I have a great ram air system IMO (see my gallery), Stans headers into 3" pipes to a Y, then a 4" system. Before the 4" exhaust my run on a poor mans dyno,- 1/4 mile, known weight 6800lbs, and time, indicated 240 Hp out of my stock 185 Hp N/A 7.3. - that was before my 4" exhaust. What I can say is that with a recient road trip, mostly highway miles, up hill and down at 60mph, I achieved 20mpg, truck didn't down shift into 3rd (E4OD)unless I kicked it down to pass. I believe that with Intake and exhaust mods, headers, I have no complaint about the power my truck delivers. I'd like to put it on a real dyno, but then I wouldn't get the 3 times stock performance out of my ram air system.
They are expensive, but way cheaper than a new turbo system, and no oil leaks, boost pressure issues (head gaskets) etc. I am quite happy with the N/A power improvements gained by headers and other mods. Overall a very noticable differance from the stock truck I started out with.
I had to fabricate my own 3 inch cross over any Y, 4 inch system for a 94 -97 PSD fits for behing the Y.

 

I just spent the last hour on the web trying to find out whatever I could about ram air. I did a search for "ram air systems" & then for "what is ram air" & then "how does ram air work". I have come to the conclusion that it dosen't work, you would have to be going well over 100 mph to get any real benifit from it & is useless in town.

 

Tell that to anyone on this forum who has modified their intake!! I measured the airflow at my stock intake at 1" water with a manometer. After my mods(see my gallery) my intake is 4 times bigger, smoother flowing, and pressure measures 2.5" at 35 mph-like thats useless? at 60 mph my intake measures 3.25" of water. That is a 3 times more positve pressure than stock air available to the intake, and don't forget that a diesel doesn't have any butterfly valve to slow that down. So if you still figure thats useless, well good luck to ya. BTW search "intake" on this forum, you will find lots of ram air ideas and threads, as well as confirmation that ram air and intake mods work.

 

so no cheap headers ? And has anyone tried using 460 headers?

 

Wont work.

 

94 up have stans come up with a turbo compatible header that would be very interesting.
msc1 just eliminateling your soupbowl helps noticibly.
Anything you can do to help these motors breath will help Thet require a lot of air and what goes in has to come out.
I personally have never seen the stans headers but they would have to be very poorly designed not to help as restricted as our manifolds are.

 

Go out and look at your stock air intake, that tiny little thing over the battery.
Measure the opening height and width.
Also while you are there, look at what is in the path of the air when the hood is down.

Post the Sq. In. area back here, I don't have that info.

At 2000 RPM, your engine is trying to such 256 cubic feet (444000 cubic inches) of air through that hole every minute.

While you are looking at yours, also consider this picture.


4" wide and 10" tall
Nice cold air from in front of the radiator.
An a boost gauge that never drops to 0 when I am driving.

Fredthefarmer, welcome to FTE and the IDI diesel forum.
The 460 is close, but nothing that bolts to a 460 will bolt to an IDI engine.

 

I just looked Stans still shows headers for all 6.9 7.3 NAdiesels 2x and4x part# 269 no headers 94 up.

 

Headers before a turbo is counter productive.

You want the smallest possible volume inside the pipes between the exhaust valves and the turbo.