57 Exhaust Header Part Number?

[My Old Blue]

I'm searching for 57' dual exhaust headers. I understand the 57' was more desirable over 56' and I see several headers for sale. I'm looking for information on the actual part number for RH/LH so I know what I'm looking for and would be buying.

I searched the forum here and did not find info I was looking for, help with info is appreciated.

[dmsfrr]

Are you looking for the oem style cast iron exhaust manifolds? Yes the '57+ versions are improved / slightly larger than the '55/'56 parts.

Here's a link with the casting numbers...
The '57 parts have an EDB prefix casting number.
There are three charts at this link: Ford car, Ford truck & Mercury.

http://y-block.info/casting/exhaust.html

[Oldmics]

I"ll give you a whole lot of information that you will have to sort out

All of the 57 and later Y Block exhaust manifolds were of heavier construction casting than the 56 and earlier units.

First - this is the part number for ALL of the 57s right side (passenger side) exhaust manifold.

B7A 9430-A this is identified by the number cast on the manifold as
EDB 9430-A

Also for the right side some later manufacturing dates that have the choke pipe intergrated into the manifold are part numbers from 1959

B9AE 9430-A

and from 1961

C1AE 9430-B

__________________________________________________ ______

Left side (Drivers)

T Birds exclusivly use

B7S 9431-A Identified by ECJ 9431-A AND ECJ 9431-C cast into the manifold.

Passenger cars used part number

B7A 9431-A Identified by EDB 9431-B cast into the manifold.

You dont state what sort of vehicle you needed the manifold for so here are your options.

Hope this helps,

Oldmics

[JeffB2]

Or ? https://www.spotlitekustomaccessorie..._Housings.html

[My Old Blue]

Brain fart on my part. Apologies. 56 Country Sedan with a 57 312 block and appears 56 heads.

[My Old Blue]

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Originally Posted by dmsfrr

Are you looking for the oem style cast iron exhaust manifolds? Yes the '57+ versions are improved / slightly larger than the '55/'56 parts.

Here's a link with the casting numbers...
The '57 parts have an EDB prefix casting number.
There are three charts at this link: Ford car, Ford truck & Mercury

http://y-block.info/casting/exhaust.html

Great link. Thank you. Yes OEM.

[dmsfrr]

Originally Posted by My Old Blue

... and appears 56 heads.

Here's another page on J. Mummert's website,
this one has a decoding chart for the head casting numbers / letters.

http://www.ford-y-block.com/cylinderheadchart.htm

[Gene F]

I think Speedway Motors seels new and improved ones, that still look original... I don't think it's MACs, I'm pretty sure I saw them in the Speedway catalog.

[My Old Blue]

So much great support here. Taking it all in and doing my homework to find my headers.

I decided to look in the spare tire well on my 56 wagon tonight and found the spare tire in there was a G78! Then looked at RT rear and it was H78. Crazy in the sense for being in the garage last 30+ years they still look good. I love my ol' wagon and learning something new everyday since I pulled it out of storage.

[My Old Blue]

Originally Posted by Oldmics

I"ll give you a whole lot of information that you will have to sort out

All of the 57 and later Y Block exhaust manifolds were of heavier construction casting than the 56 and earlier units.

First - this is the part number for ALL of the 57s right side (passenger side) exhaust manifold.

B7A 9430-A this is identified by the number cast on the manifold as
EDB 9430-A

Also for the right side some later manufacturing dates that have the choke pipe intergrated into the manifold are part numbers from 1959

B9AE 9430-A

and from 1961

C1AE 9430-B

__________________________________________________ ______

Left side (Drivers)

T Birds exclusivly use

B7S 9431-A Identified by ECJ 9431-A AND ECJ 9431-C cast into the manifold.

Passenger cars used part number

B7A 9431-A Identified by EDB 9431-B cast into the manifold.

You dont state what sort of vehicle you needed the manifold for so here are your options.

Hope this helps,

Oldmics

Oldmics, Thanks for the details in I'm learning more than I thought possible. Sorting through your post. It is safe to say I could use a 59' manifold on my 57' 312 block on the RH side then the EDB-9431-B for the LH. That being said, what is meant about the choke pipe? Are you referring to the pipe that supports the choke on say a Holley 4000?

[My Old Blue]

Originally Posted by Gene F

I think Speedway Motors seels new and improved ones, that still look original... I don't think it's MACs, I'm pretty sure I saw them in the Speedway catalog.

Good info, checking it out. thanks

[My Old Blue]

Originally Posted by dmsfrr

Here's another page on J. Mummert's website,
this one has a decoding chart for the head casting numbers / letters.

http://www.ford-y-block.com/cylinderheadchart.htm

Thank you. I've found myself living on this site and on Mummert's now..dang addicting.

[rowens55]

My old blue, glancing through the above posts I thought I would expand your recent addiction by adding "Y-blocksfoever" to your reading list. I don't know how to post a link, perhaps someone here can do that. Lots and lots of y-block info there.

[My Old Blue]

Originally Posted by rowens55

My old blue, glancing through the above posts I thought I would expand your recent addiction by adding "Y-blocksfoever" to your reading list. I don't know how to post a link, perhaps someone here can do that. Lots and lots of y-block info there.

rowens55, I got it bookmarked. Thank you.

[dmsfrr]

Originally Posted by My Old Blue

I decided to look in the spare tire well on my 56 wagon tonight and found the spare tire in there was a G78! Then looked at RT rear and it was H78. Crazy in the sense for being in the garage last 30+ years they still look good. ...

Don't think anyone would recommend driving the car past the tire store on those, no matter how good they look.

Originally Posted by My Old Blue

.... That being said, what is meant about the choke pipe? Are you referring to the pipe that supports the choke on say a Holley 4000?

Depending on which intake and exhaust manifolds you have, or end up with, the heated air to activate the carb choke mechanism may come from the intake manifold or the passenger side exhaust manifold, or misc diy setups.
Nearly all(?) '55/'57 oem 4bbl intake manifolds had a thin tube thru the base of the intake manifold to pick up heat from the exhaust crossover. They can easily burn thru and cause carb problems.
.

[paul2748]

The thin tube in the intake is easily replaced with the manifold off.

I believe that the right hand manifold with the provision for the tube is a replacement manifold. Originally, the cars had the thin tube in the inake

[My Old Blue]

Had to share what I learned the other day about by 56 Country Sedan wagon and its exhaust manifolds. I knew they were not correct for P code on data plate, what I didn't know was they were not even for the 292 I thought I had in it. Recap: Learned I do have a 312 with 56' heads after assuming I had a 292 due to the crossover.

RH Exhaust is ECE-9430 B and LH is ECE-9431-? (missing letter code) According to the helpful data supplied here on forum links, those manifold are for a 272/239 and LH was used on trucks and both were not designed for wagons.

Still on my search for the 57' exhaust manifold.

[My Old Blue]

Update: Found my 57' exhaust manifold thanks to a great forum member who reached out to me and we made our deal. Manifolds are on the way and I'm doing my homework for installation. Found a few past posts talking about the whether to use a gasket or not. I found Gil's Garage: https://www.ctci.org/gilsgarage/BrokenExManifoldEar.php advising that Ford did not use gaskets. Is this the general consensus not to use gaskets? Also, planning to sandblast them and let them age or are you folks painting with hi-temp?

[KULTULZ]

Originally Posted by My Old Blue

Found a few past posts talking about the whether to use a gasket or not. I found Gil's Garage: https://www.ctci.org/gilsgarage/BrokenExManifoldEar.php advising that Ford did not use gaskets.

Is this the general consensus not to use gaskets? Also, planning to sandblast them and let them age or are you folks painting with hi-temp?

The following is IMO...

Most production was surface to surface, but both the cylinder head and exhaust manifold surfaces must be completely flat and smooth or leakage can occur. Warpage is also going to result from inadequate fasteners/improper torque/sequence.

Later heavy truck and HP FE/FT engines used steal shim gaskets (and this may be true of MD/HD FYB) and these also served the purpose of heat shielding for spark plug boots, etc.

A combination material gasket will allow warpage whereas a steel or copper gasket should not.

If you are going for correct appearance there would be no gasket (shim) used I would think.

[My Old Blue]

Originally Posted by KULTULZ

The following is IMO...

Most production was surface to surface, but both the cylinder head and exhaust manifold surfaces must be completely flat and smooth or leakage can occur. Warpage is also going to result from inadequate fasteners/improper torque/sequence.

Later heavy truck and HP FE/FT engines used steal shim gaskets (and this may be true of MD/HD FYB) and these also served the purpose of heat shielding for spark plug boots, etc.

A combination material gasket will allow warpage whereas a steel or copper gasket should not.

If you are going for correct appearance there would be no gasket (shim) used I would think.

Thank for your insight KULTULZ

[KULTULZ]

Originally Posted by KULTULZ

Later heavy truck and HP FE/FT engines used steal shim gaskets (and this may be true of MD/HD FYB) and these also served the purpose of heat shielding for spark plug boots, etc.

I came across an engine build photo of the steel shim gaskets (B8T 9448-A) (1958/ 292 MD and HD) being used. You can see how they protect the plug boots from heat-

EDIT- (Today 12/14/2017 @ 12:09 PM - Correction)

OK...

Let me try this again as I am constantly learning...

The photo shown is not using 58/ steel shim exhaust manifold gaskets (B8T 9448-A) but Spark Plug Heat Shields (B5A 12299-A).

B5A 12299-A Shield is available from Dennis Carpenter if cannot be found NOS.

Photos Below- 1st and 2nd photo showing individual shields and 3rd photo exhaust manifold gasket with integral shields.

2nd EDIT-

Relating to choke stoves. Photos Added.