Would you be able to modify my manifold?  My 292 is stock, are there any other porting mods for the manifold?

"Kultulz...seems like you'd have to get maybe a 1" thick spacer with 1.5" throttle holes and gasket match the the holes on the "top" side with a die grinder."

I had saved a photo from EvilBay where a seller listed an ECZ-B and it showed hogged-out carb pad throttle bores. GNARLY ain't the word and would interfere with proper flow.

The F4100 ADAPTER sold by SPEEDWAY (and others) shows the transitioning bores not directly lining up with the intake bores. I am wondering if someone like TED could machine a proper adapter (and how much) to make the transition cleaner for a 1.5in carb throttle bore.. Otherwise, one would have to use the period 1.5in throttle bore carbs (HOLLEY-FORD-CARTER) or have the carb pad modified. One would also have to cipher on TED's dyno pulls to find the best method to use (IMO).

The problem with a BIRD is hood clearance and an adapter/spacer cannot be used. The 1957 H-4150 is expensive if you can find one.

              

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"Would you be able to modify my manifold?  My 292 is stock, are there any other porting mods for the manifold?"

Well, yes and no. Yes, the 57/ ECZ-B can be modified for a later style carb (larger throttle bore size). No, if wanting to mount a later style carb on your present intake as it would require an adapter and could not be used on a BIRD due to hood closing (carb mounting being too high).

Also, there should be no problem using the 57/ ECZ-B intake on the 55/56 cyl heads as FORD lists the same intake gaskets for all three years (subject to correction) (also would be nice to know all years component runner sizes).

Why do you want a later style carb? You will also have to go with a 57/ DUAL ADVANCE DIST and that will require a 12V upgrade due to losing the proper 1955 LOAD-O-MATIC carb signal.

Hold off until this thread is reviewed/answered by TED EATON as to the best/easiest way out.            

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The '57 distributor will operate on a 6 volt system.  The distributor is merely a switch, through the points.   The coil is what determines the voltage required.  Tach drive '57 distributors are rare and expensive.

John - "The Hoosier Hurricane"

The car is 12 volts.  I already have a 57 distributor and ECZ B manifold.

"The '57 distributor will operate on a 6 volt system.  The distributor is merely a switch, through the points.   The coil is what determines the voltage required."

You have done this? Will a set of 6V breaker points fit a 57/ DUAL ADV DIST PLATE? Using a 6V coil?

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"The car is 12 volts.  I already have a 57 distributor and ECZ B manifold."


In that case, you are ready to make the conversion.

The only problem I see is that the ECZ-B intake throttle bores are 1.5" and the period carb(s) used had throttle bores to match the intake bores. Depending on what style carb you go with, the replacement carb throttle bores will most likely be larger. You would have to sit the new carb on the manifold and while operating the throttle shafts see if there is any interference between the throttle blades and manifold bores (incl mounting gasket). 

If so, you would have to either modify the carb pad or use a larger bore carb spacer (the 57 BIRD came through with a spacer) to allow the carb throttle bores to open and close freely. The only problem would be a mis-match of bore sizes at the spacer and intake bores. There is no transitioning (tapered) spacer that I am aware of to allow a more free mixture flow.

Don't forget the needed ballast resistor for the 12V coil.

If you decide to go ahead without other opinions here, please get back and let the board know how it went.

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The points are not voltage specific.  Use the '57 points in the '57 distributor, regardless of the voltage.

John - "The Hoosier Hurricane"

Have you done this?

How about the condenser?

OEM 6V isn't going to give a very hot spark unless going with an amplifier or ICM (w/ specialty coil)..

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I’ve converted my ‘54 239” to the ‘57 and up distributor, must be close to 20 years ago. I’m still 6 volt. Used the points and condenser from the ‘57 and up distributor.

  Dennis in Lititz PA