Main Menu
|
Nevada Classics
|
Advertise at CC
|
S |
M |
T |
W |
T |
F |
S |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
|
|
|
|
|
CC Advertisers
|
|
12-17-2013, 11:07 AM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
427 Cobra street exhaust manifolds
I know this subject has been covered before, but I've exhausted the word combinations trying to search the old posts.
I know the original 427 Cobra Street cast iron exhaust manifolds are rare/impossible to find.
Were there any production Ford passenger car/industrial engine exhaust manifolds that were close?
Cheers
Greg
|
12-17-2013, 11:41 AM
|
|
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
not really....
__________________
Fred B
|
12-17-2013, 12:49 PM
|
|
Senior Club Cobra Member
|
|
|
Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
|
|
Not Ranked
There are a few truck manifolds that will work.
|
12-17-2013, 01:28 PM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
I wonder if something like this would work:
Centered outlet (might clear the footboxes), straight down outlet for under car exhaust.
Not great for horsepower I know.
Greg
|
12-17-2013, 01:36 PM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
Something like this looks more like the original 427Cobra Street log style exhaust manifolds:
This is a LH, which swapped to the RH side would clear the pass footbox better.
Now if only I could find a RH to swap to the LH side.
Cheers
Greg
|
12-17-2013, 01:38 PM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
Long ago someone posted pics of the original manifolds. Anyone have them?
Greg
|
12-17-2013, 01:40 PM
|
CC Member
|
|
|
Join Date: Mar 1999
Location: penn.,
Posts: 2,559
|
|
Not Ranked
|
12-17-2013, 01:41 PM
|
|
Senior Club Cobra Member
|
|
|
Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
|
|
Not Ranked
The first one you show is good for centered outlet but not the log look.
The second one has the log look you're after but direction/angle on the exit.
|
12-17-2013, 05:44 PM
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
|
|
Not Ranked
Cast iron 427 exhaust manifolds
These are the proper configuration on an original
|
12-17-2013, 09:53 PM
|
|
CC Member
|
|
|
Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,391
|
|
Not Ranked
This is one thing that I waver back and forth on. My desire to replicate an original vs a more efficient exhaust system. Choices!
Larry
__________________
Alba gu brąth
|
12-18-2013, 08:07 AM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
Thanks guys. And by coincidence, when I logged on this morning, Kirkham's pics of the street manifolds were in the photo banner at the top of the page. Got them copied now.
Cheers
Greg
|
12-18-2013, 09:59 AM
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
|
|
Not Ranked
Exhaust systems
Quote:
Originally Posted by LMH
This is one thing that I waver back and forth on. My desire to replicate an original vs a more efficient exhaust system. Choices!
Larry
|
That is easy to answer, PUT A BETTER EXHAUST ON!
I saw an early original narrow hip car that Phil Remington was driving for radiator heat testing that had a Tri-Y tube header system on a visit to the airport facility in 1965. I don't know how many cars got this but it was a much better under car exhaust system than the cast log header.
|
12-18-2013, 11:34 AM
|
|
Senior Club Cobra Member
|
|
|
Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
|
|
Not Ranked
|
12-18-2013, 12:35 PM
|
CC Member
|
|
|
Join Date: Oct 2003
Posts: 4,078
|
|
Not Ranked
Quote:
Originally Posted by mickmate
Restorers of originals will tell you the cast are good for 100HP loss.
Not this set up though.
|
What were the test results for loss with this system?
__________________
Chas.
|
12-18-2013, 01:56 PM
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
|
|
Not Ranked
Street exhaust
Quote:
Originally Posted by mickmate
|
That is a great looking system Nic, it looks a lot like the one Remington had on that street car he was testing so long ago. The stock cast exhaust will also limit your cam choice because it can not tolerate much overlap.
|
12-18-2013, 04:50 PM
|
Club Cobra Member
|
|
|
Join Date: Mar 2002
Location: arroyo grande, ca,
ca
Cobra Make, Engine: NAF 427
Posts: 1,774
|
|
Not Ranked
Roger sent me this message:
1. 8 FE flanges
2. 2 pieces of rectangular steel, 1/8" wall. (2??x3??)
3. piece 3" square to hand fab the downspout
4. 2 3-bolt exhaust flanges.
Install engine, steering, pedal box with masters.
locate to fit and tack the pieces.
Take it somewhere to be welded, ceramic coat satin black.
DONE
As I recall this is about what was done prior to the manifolds being cast,
basically of a "log" manifold with center drop at some odd angle to fit.
There is very little room for the downspout, its a small target, so anything
other than the correct "real" piece is going to need ALOT of rework.
Cast iron isn't easy to cut nor weld.
When you're finished, the headers are down under anyhow, just say
"Bought the last set of OEM Cobra street headers in 1970"... Likely
even experts couldn't tell!!! Likely flow much better than the real one."
Nice little project for the new year.
Cheers
Greg
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 05:04 AM.
Links monetized by VigLink
|