Wcfb
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Joined: Aug 2007
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Army
Race Director
Joined: Mar 2001
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From: Mustang OK
2026 Corvette of the Year Finalist - Modified
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It has been my observation over the years, that 1x4bl WCFB carbs have a thicker throttle plate than 2x4 WCFB carbs, regardless of pass car or Corvette application.
Drifting
Joined: Aug 2004
Posts: 1,294
Likes: 295
From: Galveston & Belton Texas
Team Owner
Joined: Aug 2007
Posts: 58,061
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Army
If the concern is hood clearance or air cleaner fit - those are non issues; there are many, many dual quad setups with cloned 1x4 passenger carbs in both positions that fit and run fine. I had a set on the 61 and a forum member runs them on his C1 now..
Burning Brakes
Joined: Oct 2005
Posts: 993
Likes: 95
From: Captain Cook Hawaii
For the 63, 64, and 65 base engines the WCFB uses a different air horn. It has a dropped fuel inlet, this allows the stock air cleaner to to fit flat on the air horn. Fuel line is also specific to the dropped inlet.
I can get the air horn number if requested.
Aloha,
Rene
I can get the air horn number if requested.
Aloha,
Rene
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
For the 63, 64, and 65 base engines the WCFB uses a different air horn. It has a dropped fuel inlet, this allows the stock air cleaner to to fit flat on the air horn. Fuel line is also specific to the dropped inlet.
I can get the air horn number if requested.
Aloha,
Rene
I can get the air horn number if requested.
Aloha,
Rene
Burning Brakes
Joined: Oct 2005
Posts: 993
Likes: 95
From: Captain Cook Hawaii
Mike; I do not know the answer to the choke question. The choke housing mounts to the base so there could be different bases or choke housings? Daytona would know for sure. I bought a "replacement carb" from NAPA in the late 70's for my 63. Piece of junk with the wrong air horn so it became a parts carb for my original. So fast forward, I bought a correct air horn from "Chicago" and sent the junk carb off to Daytona. Got back a work of art.
Aloha,
Rene
Aloha,
Rene
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Drifting
Joined: Aug 2004
Posts: 1,294
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From: Galveston & Belton Texas
I may be totally off base here but hope this helps the original poster on his question too? As I understand things for Corvette the high choke was used at least through 1958 1x4 setups and then by 1959 it was changed to low mount. Have no clue if passenger was same but would think so. My correct 58 wcfb dual quads and the other C1 dual setups are high choke arrangements and suspect passenger setups where identical. There are an awful lot of older wcfb's that were used on lots of different makes. I am no expert so I trust others will correct me if wrong.
Last edited by tgtexas02; Mar 27, 2020 at 12:35 AM. Reason: to correct typing error
Team Owner
Joined: Aug 2007
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Army
I may be totally off base here but hope this helps the original poster on his question too? As I understand things for Corvette the low choke was used at least through 1958 1x4 setups and then by 1959 it was changed to high mount. Have no clue if passenger was same but would think so. My correct 58 wcfb dual quads and the other C1 dual setups are high choke arrangements and suspect passenger setups where identical. There are an awful lot of older wcfb's that were used on lots of different makes. I am no expert so I trust others will correct me if wrong.
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
Drifting
Joined: Aug 2004
Posts: 1,294
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From: Galveston & Belton Texas
Frankie, that is what I consider really good to know straight forward info even though I don't need it now. Have had several C3 and C4 but after my 58 is finished feeling that I just might need a C2 convertible. At least I will be a little more carb smart?
Le Mans Master
Joined: Dec 2007
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From: Puget Sound
Team Owner
Joined: Mar 2003
Posts: 26,118
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From: Greenville, Indiana
