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exhaust

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Georgia200
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exhaust

Post #1 by Georgia200 » Fri Sep 13, 2019 11:26 am

Does anyone make a long tube header for a 250 anymore?

Anyone hog out a oem manifold to 2.25in? If so, how did it perform?

Im planning on a 2.25in single exhaust going into a transverse muffler and dual 2in outlets that exit in the stock location.

Ive always liked the muffler tucked up out of the way.

There are a couple muffler choices, mid-80s Camaros were plumbed that way.

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rbohm
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Re: exhaust

Post #2 by rbohm » Fri Sep 13, 2019 12:43 pm

vintageinlines carries them;

https://www.vintageinlines.com/product- ... let-header

i believe hooker still makes headers for the small ford six as well.
64 falcon
66 mustang
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chad
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2Q in One: exhaust intake = 2 threads

Post #3 by chad » Fri Sep 13, 2019 6:15 pm

those VI's might B known as shorties or at best middies by some of us.
No hooker, no longer makes them.
The used R closely held, 1 set just went past me here on our "4Sale" forum.
We can get U the prt number for flebay search or other ("66xx" something er da odder).

Not sure bout the other Q.
"...Anyone hog out a oem manifold to 2.25in? If so, how did it perform?..."
Many threads here on improvement to the i6 'in breath'. (Logautomy/logextomy).
A Miller's 6 bike carbs R my fav.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

CZLN6
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Re: exhaust

Post #4 by CZLN6 » Sat Sep 14, 2019 9:31 pm

howdy Georgia 200:

No, it is not possible to open a stock exhaust manifold past 2" and still maintain the stock type firewall seal between the manifold and the head pipe.

Another option is to use a late style manifold that attaches a catalytic converter. IT would have to be modified to fit a 2.5" head pipe. I seem to recall someone doing a similar mod to mount dual exhaust.

I bought a long tube single outlet header from Clifford Performance about 15 years ago to go on my 250 in a '65 Ranchero. I don't know if they stock them anymore. I suggest that you try our host first.

Adios, David
co-author of the Falcon Performance Handbook
http://www.falcon6handbook.com/

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chad
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i6 "long tube" exhaust 'headers'

Post #5 by chad » Sun Sep 15, 2019 7:12 am

alBdarned, looks like they have it but only as a kit w/a carb ("ford 200 6=8").
Haveta keep checkin in w/good ol Clif even w/their changes in personnel.

Holley took over Hooker 1/2 doz yrs ago? After the clifford surprise (above kit) I thought
I'd go there. A 30 page check did not cover all their exh. 'header' models so I plugged in
'69 mustang (no filter for an i6, most options were 4 a bent8) and even that gave a 'no models' response.
I'm thinkin they do have some thing for the 289/302/351. However, I did not pursue.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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bubba22349
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Re: exhaust

Post #6 by bubba22349 » Sun Sep 15, 2019 5:36 pm

CZLN6 wrote:howdy Georgia 200:

No, it is not possible to open a stock exhaust manifold past 2" and still maintain the stock type firewall seal between the manifold and the head pipe.

Another option is to use a late style manifold that attaches a catalytic converter. IT would have to be modified to fit a 2.5" head pipe. I seem to recall someone doing a similar mod to mount dual exhaust.

I bought a long tube single outlet header from Clifford Performance about 15 years ago to go on my 250 in a '65 Ranchero. I don't know if they stock them anymore. I suggest that you try our host first.

Adios, David


"Georgia200" I believe that it was Xtascy that did this mod on the late 200 (1980 up to end of production) exhaust manifold. By modding a gutted cat and a little welding the 4 1/4 inch outlet can easily be converted into a duel 2 1/4 inch outlet or larger 2 1/2 (to a 3 inch or more single outlet for a Turbo) exhaust manifold, see below links for pictures. These manifolds are also much better flowing then any of the previous 144, 170, 200, or 250 log exhaust manifolds. Good luck on your 250 swap :thumbup: :nod:

Xtascy's pictures of a the Late 200 "Football" exhaust manifolds, sorry couldn't find his picture showing the duel exhaust mod to the gutted cat shell.
http://i1215.photobucket.com/albums/cc5 ... t200-1.jpg

viewtopic.php?f=1&t=75870&p=586537&hilit=1980+200+exhaust+manifold#p584144
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

Georgia200
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Re: exhaust

Post #7 by Georgia200 » Mon Sep 16, 2019 4:19 pm

I have a 2in 250 log, I was under the impression that could be opened to 2.25in.

I really dont like the dual outlet header on a six.

I would like a 2.25 single that goes into a transverse muffler and dual 2in outlets under the valance.

Mid-80s Camaros had the single in / dual out muffler.

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chad
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Re: exhaust

Post #8 by chad » Mon Sep 16, 2019 10:08 pm

obviously U can put any muf U want on it.
U mention both log & exhaust. I'm not sure what U R looking for. May B some detail could help.
A direct mount 2v carb, redoing the oe exh. manifold at the connection w/down pipe?
It is a ford, can't make it a chebby.
Sorry, just kinda 'thick' myself...
:oops:
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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