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Holley Flathead Carburetor Adapter

SAME DAY SHIPPING! Order within the next 10 hours 47 minutes and receive same day shipping

Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Natural
Gasket(s) Included:
Yes
Hardware Included:
Yes
Overall Height:
.50
Overall Width:
5.843
Overall Length:
6.375
Bore Size:
1.50
Bore Size (Opposite):
1.69
Bolt Hole Pattern:
(1): 3.750" x 3.875" (2): 4.250" x 5.625" (3): 5.125" x 5.6
Notes
Bolts a Holley, Edelbrock, or Carter AFB to the early 50's WCFB pattern.
Holley Flathead Carburetor Adapter
Holley Flathead Carburetor Adapter
Holley Flathead Carburetor Adapter
Holley Flathead Carburetor Adapter

Click image to enlarge

Details

Reviews (4)

Q & A (5)

What's in the Box

Info

Adapts standard Edelbrock or Holley 4 barrel carb to the smaller '50s WCFB bolt pattern manifold.

This carb adapter includes gaskets for both top and bottom sides as well as mounting hardware.

Notes

  1. Bore size is 1.5" on the small side and tapers to 1.685" on the large side.
  2. Smaller Inner Bolt Pattern:
    • Side to side is 3-3/4" center to center
    • Front to rear is 3-7/8" center to center
  3. Outer Bolt Pattern:
    • Side to side on inner pattern is 4-1/4" center to center
    • Side to side on outer pattern is 5-1/8" center to center
    • Front to rear is 5-5/8" center to center

Customer Reviews

Rated 5 out of 5 by 4 reviewers.
RATING BREAKDOWN
4 reviews
5 Stars
4
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Studebaker Dave
Verified Purchaser
Port Alberni BC Canada

Offenhauser WCFB to Holley Or Edelbrock adapter

May 14, 2016
Lets you use a current Edelbrock or Holley carb on an old Offenhauser WCFB intake- The best of old & new!
Yes, I recommend this product.
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dlhnova1
Verified Purchaser

Perfect fit, includes gaskets!

August 19, 2014
I used this for a 1955 Buick Nail head and it worked perfect! Picture doesn't show gaskets, but I was relieved to see that they were included. The only other thing to mention, is that I had to center the butterflies before tightening the carb down, it's close, but it works great! The car never run so good.
Pros:
  • includes gaskets
Yes, I recommend this product.
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none
Verified Purchaser
minn.

Worked great

September 26, 2011
Fit perfect
Pros:
  • Easy To Use
Yes, I recommend this product.
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Don
Aston PA

Great

March 15, 2010
Brian Robinson REALLY helped me out ----Again!!!!!!!!!!
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

5 questions : 5 answers

1 answers

Will this adapter plate fit a 1956 desoto 330ci hemi with a WCFB four barrel

Fireflite
New York, NY, USA
November 25, 2014

Will this adapter plate fit a 1956 desoto 330ci hemi with a WCFB four barrel

Answers

November 25, 2014
EricM
Yes this will convert a WCFB intake manifold to accept a common Holley square bore carburetor.
1 answers

Will this work for a edelbrock 1406 I want to replace my 1954 Carter WCFB with a Edelbrock 1406. Will this adapter work?

BigCountry
Chula Vista, CA, USA
July 22, 2014

Will this work for a edelbrock 1406 I want to replace my 1954 Carter WCFB with a Edelbrock 1406. Will this adapter work?

Answers

July 23, 2014
EricM
Yes this adapter will adapt an Edelbrock 1406 carburetor to the Carter WCFB pattern.
1 answers

I am asking if this adapter will work on the Ford 239 Overhead valve intake manifold. It appears that the small base "teapot" carb is similar to the 4bbl manifolds made for the flattie. I am trying to purchase an original '54 239 4bbl manifold and want to

Bob
June 09, 2011

I am asking if this adapter will work on the Ford 239 Overhead valve intake manifold. It appears that the small base "teapot" carb is similar to the 4bbl manifolds made for the flattie. I am trying to purchase an original '54 239 4bbl manifold and want to

Answers

June 13, 2011
John
This adapter is designed to fit on the early WCFB small pattern intakes and accepts the later Edelbrock, Holley, Demon, etc. It works on our flathead intakes when running the 390cfm Holley carbs and has the following specifications to compare to your application to verify fit: Bore Size is 1.5" on the small side and tapers to 1.685" on the large side. Smaller Inner Bolt Pattern: Side to side is 3-3/4" center to center, Front to rear is 3-7/8" center to center. Outer Bolt Pattern: Side to side on inner pattern is 4-1/4" center to center, Side to side on outer pattern is 5-1/8" center to center, Front to rear is 5-5/8" center to center. If you have the smaller pattern intake this adapter would allow you to use our 390cfm Holley carburetors or any square pattern four barrel carburetor.
1 answers

I have a 1956 Buick and the intake manifold for the Rochester 4GC is the same as the Carter WCFB. What is the difference between this spacer plate and 1351935?

Ben
Kent, WA
April 01, 2016

I have a 1956 Buick and the intake manifold for the Rochester 4GC is the same as the Carter WCFB. What is the difference between this spacer plate and 1351935?

Answers

April 04, 2016
John
Expert
Between the 1351935 and the 1351935B is the manufacturer and a little thickness. Customers like the 1351935B about 2 to 1 over the 1351935 according to sales records.
1 answers

Will this adapter work to mount two demon 1901 625 cfm to a dual quad 57 corvette intake. I believe the original carbs are Carter WCFB's

Colby
Lawton, OK
May 30, 2016

Will this adapter work to mount two demon 1901 625 cfm to a dual quad 57 corvette intake. I believe the original carbs are Carter WCFB's

Answers

June 01, 2016
Clark
Expert
This adapter will adapt the Demon 1901 (our #910-12017) to the Corvette intake. However, there may not be enough room between the carb pads on the intake to permit use of these carbs. They may "CRASH" in the middle.
Page 1 of 1

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