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Username Post: What carb will replace a WCFB?        (Topic#368905)
craig32 
Frequent Contributor
Posts: 1378

Age: 60
Loc: PA
Reg: 08-05-07
07-09-22 03:42 PM - Post#2844087    

1956 engine - 265, standard heads, (small port) small square bore around 400cfm. Edelbrock is basically a shined up Carter, have they made anything to fit those intakes in the last 67 years?

05 Buick Lacrosse
66 Impala
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 


51 AD 3100 
Contributor
Posts: 206

Age: 55
Loc: Grant, AL
Reg: 08-30-20
07-10-22 05:39 AM - Post#2844116    
    In response to craig32

not sure but i have a 65 283 that i had bought a wcfb (4bbl) intake for it and i couldnt find any carb to go on it. nothing functional anyway. thought id gotten a great deal on the intake until i figured out i'd wasted my money on it. I even tried finding not 1 but 2 so called adapter plates and neither bolt holes lined up. unless someone has THE carb intended to go on that and is functional , i think youre s.o.l.

Life's more fun, in a '51


 
DZAUTO 
Member #51
Posts: 9168

Loc: Mustang, OK, USA
Reg: 12-25-99
07-10-22 10:21 AM - Post#2844136    
    In response to Tony1963

Rochester 4GC and Carter WCFB both fit the EXACT same intake manifold bolt pattern-----------265-283 -327.

The 55-57 people don't know that????????????????????? ????????



 
Shepherd 
Valued Contributor
Posts: 2631

Loc: Lake George, NY
Reg: 11-11-15
07-10-22 10:33 AM - Post#2844139    
    In response to Tony1963

Any wcfb carb is a 4bbl. It means Walter Carter four barrel. Was in the header, hard to notice.



 
craig32 
Frequent Contributor
Posts: 1378

Age: 60
Loc: PA
Reg: 08-05-07
07-10-22 11:15 AM - Post#2844145    
    In response to DZAUTO

  • DZAUTO Said:
Rochester 4GC and Carter WCFB both fit the EXACT same intake manifold bolt pattern-----------265-283 -327.

The 55-57 people don't know that????????????????????? ????????

Yes, Tom, I'm very aware the Rochester 4GC and the Carter WCFB use the same intake(s) and I have the early one that I can't change. The newest of either the 4GC or WCFB will be 57 years old. I know Carter is out of business, and fairly certain Rochester is as well.
Apparently nobody has ever made a replacement for it, with or without an adaptor.



05 Buick Lacrosse
66 Impala
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 
craig32 
Frequent Contributor
Posts: 1378

Age: 60
Loc: PA
Reg: 08-05-07
07-10-22 03:11 PM - Post#2844156    
    In response to DZAUTO

Really just wanted to know if anything besides the equally old 4GC can work on that intake, as I can't put a different one on 1956 small port heads.


BT Dubs, did you ever notice how 'have a nice day' sounds friendly, while 'Enjoy the next 24 hours' sounds threatening??

05 Buick Lacrosse
66 Impala
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


Edited by craig32 on 07-10-22 03:11 PM. Reason for edit: No reason given.

 
Mel Foye 
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Mel Foye
Reg: 09-29-00
07-10-22 05:20 PM - Post#2844162    
    In response to Shepherd

Shepherd you taught me something. First 20 years in Iowa and Minnesota in talking/listening cars a wcfb was short for white cast four barrel. Even in Corvette club in California still was white cast.



It Was On Fire When I Laid Down.


 
Shepherd 
Valued Contributor
Posts: 2631

Loc: Lake George, NY
Reg: 11-11-15
07-10-22 05:40 PM - Post#2844163    
    In response to Mel Foye

Sometimes age has an advantage. Lol



 
craig32 
Frequent Contributor
Posts: 1378

Age: 60
Loc: PA
Reg: 08-05-07
07-11-22 02:14 AM - Post#2844170    
    In response to Mel Foye

  • Mel Foye Said:
Shepherd you taught me something. First 20 years in Iowa and Minnesota in talking/listening cars a wcfb was short for white cast four barrel. Even in Corvette club in California still was white cast.


I had heard WCFB = white cast four barrel, or Will Carter four barrel, and AFB was Aluminum four barrel, or 'Awful F***in' Big.

05 Buick Lacrosse
66 Impala
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 
Stinky 
Senior Member
Posts: 1841

Loc: Whitewater, CO
Reg: 05-25-01
07-12-22 03:36 PM - Post#2844242    
    In response to Tony

Soooo, we've learned that an AFB will fit. IMHO, you do not want a 625/650. You want the 500 or 550, based on ur engine size.

I ran a 650 on my 305, and it was a touch big. It ran fine on the primaries. But, when you nailed it, it had a tendency to bog for a few seconds before it pulled strong.

You might be able to find one on Ebay...cheap. I don't remember the small(er) carbs size. But if you look at the Edelbrock webiste you could find out. Also, get the Part Number when you go to ebay.

If you find a 625 cheap...they only dif between them and the smaller ones is the discharge nozzles in the primary bores. Not sure if you can get those from Edelbrock, or not.

OHhhhhh, the smaller carbs, AFAIK, they come w/a manual choke. But, they can be converted to electric choke.

Fuel INjection can be had for about $1,000 buckeroos...you'll find out, that carbs are approaching that price.



Edited by Stinky on 07-12-22 03:38 PM. Reason for edit: No reason given.

 
Rick_L 
Member #409
Posts: 27993
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
07-12-22 07:03 PM - Post#2844264    
    In response to Stinky

An AFB won't fit without an adapter. And I wouldn't be surprised if the adapters aren't made any more. Maybe you could find one on Ebay or at a swap meet.



 
51 AD 3100 
Contributor
Posts: 206

Age: 55
Loc: Grant, AL
Reg: 08-30-20
07-13-22 04:58 AM - Post#2844279    
    In response to Mel Foye

same here. white cast four barrel. then i read will carter four barrel. might as well add "which carburetor fits best?"

Life's more fun, in a '51


 
51 AD 3100 
Contributor
Posts: 206

Age: 55
Loc: Grant, AL
Reg: 08-30-20
07-13-22 05:22 AM - Post#2844284    
    In response to Rick_L

i tried 2 adapters . one was from the local speedshop , other was from speedway. Both were supposed to specifically adapt (in my case a Holley) to a wcfb intake, which i learned through almost $75 was not true whatsoever. I ended up finding a "H" cast intake (which I found out was a 327 factory "300 HP" intake but the ports matched better to the 520 PP heads anyway. that accepted the Holley carb i have. Sometimes you have to go back to original parts and a few model years to find something that WILL work.

Life's more fun, in a '51


 
Shepherd 
Valued Contributor
Posts: 2631

Loc: Lake George, NY
Reg: 11-11-15
07-13-22 12:50 PM - Post#2844304    
    In response to Mel Foye

Mel, correction on my part, WCFB, is actually, William Carter four barrel.



 
carbking 
Senior Member
Posts: 1563
carbking
Loc: Missouri
Reg: 06-14-03
07-18-22 02:54 PM - Post#2844582    
    In response to Shepherd

The nomenclature for the WCFB has been in argument format for decades.

I used to think it stood for white cast four barrel, until my engineering friends at Carter, circa 1980, chastised me severely, and informed me it stood for Will Carter four barrel.

I don't really care; I just refer to one as a WCFB. The WCFB came with two different mounting patterns:

https://www.thecarburetorshop.com/Four_barrel_moun...

Not certain why the OP wishes to change, as the WCFB and the Rochester 4G series are EXCELLENT carburetors. Both are infinitely tunable, and very reliable.

As far as putting on a larger carburetor: OK, if it is a race car; but the original carbs designed for Chevrolet are calibrated to work well on the street. In the following article, pay attention to the CFM used for the RACING WCFB built for Chevrolet:

https://www.thecarburetorshop.com/WCFB_flow_rating...

Jon

Good carburetion is fuelish hot air!

The most expensive carburetor you will ever buy.....is the incorrect one you attempt to modify!

If you truly believe "one size fits all", trying walking a mile in your spouse's shoes!


 
Tony1963 
Frequent Contributor
Posts: 1596

Loc: Orlando Florida
Reg: 07-09-18
07-18-22 03:34 PM - Post#2844585    
    In response to carbking

AMEN! No need for aftermarket nonsense.

People fear change because it threatens what they know, or what they claim to know.


 
carbking 
Senior Member
Posts: 1563
carbking
Loc: Missouri
Reg: 06-14-03
07-27-22 03:48 PM - Post#2845018    
    In response to Tony1963

Craig - my first answer was somewhat general as I had a lot going on that day.

Have more time today.

So:

Some of the AFB carbs will bolt to the intake, but the throttle valves will not open. About 1960, ALL of the carburetor manufacturers changed the relative center-line on the four-barrel throttle bores, in order to allow larger CFM carburetors.

Once, there was an adapter for the 1956 intake, but using the adapter also required either a manifold baffle, or modification of the intake.

Now, why I made the comment about why anyone would want to replace the WCFB.

From a performance standpoint, ANY larger carburetor used with/without an adapter on the original manifold will run WORSE than the original WCFB (think NASCAR restricter plate racing).

From a tuning standpoint, due to Carter's metering rod technology, the WCFB is infinitely tuneable.

From a reliability standpoint, assuming that 67 year-old WCFB is rebuilt correctly, there is NO FOUR BARREL built in the last 50 years that is as reliable as the WCFB. The genuine Carter AFB were somewhat technologically advanced, but less reliable.

Add to the above that the original WCFB fits the manifold, fits the original air cleaner, hooks up to the linkage, etc., etc., etc. and now you know why I question the change.

And one other comment about your post: the new imitation AFB's are NOT basically shiny Carters! There are many differences.

Now the caviat: I have been sold out of the Carter 2366s (1956 Chevrolet) WCFB for years. This post does not "grind my axe"!

If you REALLY have to have a different carburetor: acquire an aftermarket intake of your choice. If your engine is relatively stock (no full racing, or roller camshafts, headers, etc., etc., etc.), then (opinion) the very best carb you can install (its still too big) is the Carter AFB 9400s or 9410s (both of which are 400 CFM); and I am sold out of these as well, and they sell for way more than the WCFB!

If this is a race engine, the above does not apply.

Jon.

Good carburetion is fuelish hot air!

The most expensive carburetor you will ever buy.....is the incorrect one you attempt to modify!

If you truly believe "one size fits all", trying walking a mile in your spouse's shoes!


 
DZAUTO 
Member #51
Posts: 9168

Loc: Mustang, OK, USA
Reg: 12-25-99
07-27-22 05:14 PM - Post#2845021    
    In response to carbking

.



 


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