WCFB Dual Quad Clone Carb Numbers needed
09-07-2011, 12:29 PM
#1
Melting Slicks
Thread Starter
WCFB Dual Quad Clone Carb Numbers needed
I just purchased a 57-61 dual quad manifold. I am not looking for correct carb numbers. I am looking for carb numbers that would make good operational clones. I figure I will buy the cores and have them refurbished as clones. Carb numbers or models would be appreciated! 
Last edited by jtranger; 09-07-2011 at 12:29 PM. Reason: spelling
09-07-2011, 01:23 PM
#2
Team Owner
Here are the numbers off my phenomenally running WCFB clones on my 270HP solid lifter 283 ci (I didn't record the base numbers as the carbs are on the car and they are inaccessible):
Air Horn / Body / Base
Front Carb: 6-1143 (Rear off ???) / 0-1132 / Thick
Rear Carb: 6-1273 (Chrysler rear 2X4) / 0-1228 / Thick
These carbs have had the correct 270HP counterweights and arms installed and set up for a solid lifter engine (e.g. springs, etc.)
I purchased them from MZTERCARB@AOL.COM and you might want to consider having him build up whatever cores you come up with.
I was pretty amazed when I installed them - great performance, no percolation and my manifold vacuum went up a bunch to 18 in of vacuum.
Air Horn / Body / Base
Front Carb: 6-1143 (Rear off ???) / 0-1132 / Thick
Rear Carb: 6-1273 (Chrysler rear 2X4) / 0-1228 / Thick
These carbs have had the correct 270HP counterweights and arms installed and set up for a solid lifter engine (e.g. springs, etc.)
I purchased them from MZTERCARB@AOL.COM and you might want to consider having him build up whatever cores you come up with.
I was pretty amazed when I installed them - great performance, no percolation and my manifold vacuum went up a bunch to 18 in of vacuum.
Last edited by Frankie the Fink; 09-07-2011 at 01:35 PM.
09-07-2011, 03:31 PM
#3
Melting Slicks
Thread Starter
Thanks Frank, I didn't know you were running clones. I thought you had the originals unless you boxed them up. Any other numbers would be appreciated to open up the chances of finding a set. 
Last edited by jtranger; 09-07-2011 at 03:32 PM. Reason: add
09-07-2011, 03:59 PM
#4
Team Owner
I got my original "real deal" 270HP dual quad WCFBs back from a full restoration from Bob Kunz. I got a tear in my eye when I thought about despoiling these works of art by putting gas in them. They are in a small shrine in a cabinet in my garage for now...
09-07-2011, 05:22 PM
#5
Melting Slicks
Thread Starter
I know what you mean Frank, too nice to run them. You can beat up the clones and not worry. I have been checking on Ebay and hard to find those core numbers. Hopefully someone will chime in with other numbers to look out for.
09-07-2011, 08:07 PM
#7
Team Owner
09-08-2011, 07:34 AM
#8
Advanced
By the way, be cautious with Mztercarb. Over-priced and is Chicago Corvette, which past posts have considered unreliable.
Last edited by blackvette58; 09-08-2011 at 07:47 AM.
09-08-2011, 08:10 AM
#9
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Just an added comment to be aware of.
GENUINE 2x4 carbs are a lower profile than the 1x4 carbs. The base plate of a 1x4 carb is thicker (taller) than the base plates of the 56-61 2x4 carb base plates. Also, the screw hole pattern between the base plate and carb body of 1x4 and 2x4 carbs is ever so slightly different. This prevents interchanging a 1x4 and 2x4 base plate with a 1x4 and 2x4 body. Yes, I know, they are both WCFBs, but those slight differences do exist.
Also, on the plus side, all the 1x4 carbs that I've touched have slightly larger bores/throttle plates than those of the 2x4 carbs. Thus, a 2x4 setup using two 1x4 carbs results in slightly more CFM.
As anyone knows that has a pair of true 2x4 carbs, the rear carb has a HIGH choke. The early 1x4 carbs also had a high choke, and about 1960 or 61, the 1x4 carbs had the choke positioned down low (I can only guess this was to improve clearance for the air cleaner base). So if a 2x4 clone setup is going to be made with two 1x4 carbs, then a more realistic appearance would be achieved using an early 1x4 carb with the high choke.
Tom Parsons
GENUINE 2x4 carbs are a lower profile than the 1x4 carbs. The base plate of a 1x4 carb is thicker (taller) than the base plates of the 56-61 2x4 carb base plates. Also, the screw hole pattern between the base plate and carb body of 1x4 and 2x4 carbs is ever so slightly different. This prevents interchanging a 1x4 and 2x4 base plate with a 1x4 and 2x4 body. Yes, I know, they are both WCFBs, but those slight differences do exist.
Also, on the plus side, all the 1x4 carbs that I've touched have slightly larger bores/throttle plates than those of the 2x4 carbs. Thus, a 2x4 setup using two 1x4 carbs results in slightly more CFM.
As anyone knows that has a pair of true 2x4 carbs, the rear carb has a HIGH choke. The early 1x4 carbs also had a high choke, and about 1960 or 61, the 1x4 carbs had the choke positioned down low (I can only guess this was to improve clearance for the air cleaner base). So if a 2x4 clone setup is going to be made with two 1x4 carbs, then a more realistic appearance would be achieved using an early 1x4 carb with the high choke.
Tom Parsons
09-08-2011, 09:06 AM
#10
Team Owner
All true Tom.
And the Chrysler carbs have a slightly bigger bore than the normal GM versions....which may provide a slight boost (that is what I have on the rear). Single carbs that are cloned to be front carbs usually have plugged up choke mounting holes and a plugged hole for the choke valve shaft in the air horn...that's the dead giveaway...
The fella that I bought the carbs from did me right...can't say on others' experiences.
And the Chrysler carbs have a slightly bigger bore than the normal GM versions....which may provide a slight boost (that is what I have on the rear). Single carbs that are cloned to be front carbs usually have plugged up choke mounting holes and a plugged hole for the choke valve shaft in the air horn...that's the dead giveaway...
The fella that I bought the carbs from did me right...can't say on others' experiences.
09-08-2011, 04:39 PM
#11
Drifting
Are WCFB (and for that matter any carbi) cast aluminum or diecast as I've often wondered why people don't mig weld up and machine the holes on the secondary clone carb where the choke holes are? I'm guessing diecast!!
09-08-2011, 05:14 PM
#12
Team Owner
From: http://www.mre-books.com/sa130/sa130_2.htmlThe WCFB, introduced in 1952, flowed approximately 385 cfm and was comprised of three basic
castings: a cast-iron throttle body, a zinc main body, and an aluminum air horn.
You have to be extremely careful welding aluminum...a little too much heat and you
wind up with distortion and/or discoloration. A fingertip of JB Weld on the other hand, and your
"hole" is permanently plugged....done carefully its nearly as hard to detect as a weld job would be.
castings: a cast-iron throttle body, a zinc main body, and an aluminum air horn.
You have to be extremely careful welding aluminum...a little too much heat and you
wind up with distortion and/or discoloration. A fingertip of JB Weld on the other hand, and your
"hole" is permanently plugged....done carefully its nearly as hard to detect as a weld job would be.
09-08-2011, 07:13 PM
#13
Drifting
Methinks your wife is going to deduct a few points from you. In a fire who/what would you rescue first?
09-08-2011, 09:45 PM
#14
Team Owner
WCFBs weigh 18lbs apiece...if there is a fire and the wife can carry one away from danger and I carry the other...then all the bases are covered...
12-16-2014, 08:34 AM
#16
Team Owner
http://www.ebay.com/itm/1957-1961-CORVETTE-DUAL-QUAD-WCFB-CARBURETORS-COMPLETELY-RESTORED-/191449594903?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c9348fc17&vxp=mtr
Last edited by Frankie the Fink; 12-16-2014 at 08:56 AM.
