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1920

The Holley 1920 carburetor is a one barrel downdraft carburetor with an aluminum throttle body, zinc float bowl and metering body. Some 1920 carburetors had a glass float bowl and the glass and zinc float bowls are interchangeable. The metering block contains the main metering jet and accelerator pump check valves. The accelerator pump can be a cam operated, or a spring type. The cam type will use an accelerator pump with a flat stem, while the spring type uses a round stem type of pump. The 1920 generally used a Nitrophyl type of float, which should be changed at each rebuild, but unfortunately the 1920 float is no longer being produced.  We do have a NOS 1920 float that fits some of the 1920 carburetors. Holley 1920 float weights.
 
The 1920 carburetor is identified by it's LIST number, which can be found on the top of the main body, just behind the float bowl. Holley carburetor numbers may be listed as R-1185-1A, with 1185 being the list number and generally can be used to identify the correct carburetor kit.

Our catalog includes carburetor kits, floats, thermostats, choke pulloffs and other carburetor related parts.  All parts that we have available can be found in this catalog. We often add new parts, so check back every so often.
Products (Total Items: 77)
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Holley 1920 Float
Holley 1920 Float
Part # FL14
Average Rating(2)
$39.95
DISCONTINUED
Idle Mixture Screw - 1.00 x 10x32
10 x 32 x 1.000"
Part # 16-15
$5.25
In Stock
Holley  Carburetor Idle Mixture Screw
Holley 1904 1 barrel carburetor idle mixture screw 10-32X.998
Part # 16-45
Average Rating(4)
$5.25
In Stock
Autolite Holley Motorcraft Idle Mixture Screw
10 x 32 x 1 3/8"
Part # 16-73
$4.95
In Stock
Carter Throttle Arm Swivel Linkage Stud
Part # 22-18B
Average Rating(1)
$5.95
In Stock
Throttle Bushing
ID .312 OD .345
Part # 22-27
$2.49
In Stock
Brass Throttle Bushing
ID .312 OD .345 L .600
Part # 22-51
$1.95
In Stock
Brass Throttle Bushing
ID .375 OD .444
Part # 22-83
Average Rating(1)
$2.95
In Stock
Holley Needle & Seat
Part # NS594
Average Rating(2)
$10.95
In Stock
Holley 1909 1 Barrel Float Pin
Part # 32-5
$3.95
In Stock
Universal Choke Cap
Part # 40-4
$3.95
In Stock
Holley 4000 Teapot Carburetor Idle Mixture Screws
Part # 16-2-1
Average Rating(1)
$4.95
In Stock
Holley Carburetor Power Valve Assembly
Holley 1909 carburetor power valve assembly.
Part # 54-14
$9.95
In Stock
Holley 1920 1 Barrel Accelerator Pump Diaphragm
Part # AP287
Average Rating(3)
$14.95
In Stock
Holley 1920 Accelerator Pump Diaphragm
Holley 1920 Pump Diagraphm
Part # AP371
Average Rating(2)
$21.95
In Stock
Holley 1904 Carburetor Accelerator Pump Diaphragm
Holley 1904 diaphragm.
Part # AP70-1
Average Rating(4)
$19.95
In Stock
Pump Return Spring
ID .385 Length 1.580
Part # 66-15
Average Rating(14)
$1.95
In Stock
Idle Mixture Screw Spring - 66-3
ID .195" Length .425"
Part # 66-3
Average Rating(6)
$1.95
In Stock
Universal Choke Thermostat Coil
Part # 66-32
Average Rating(4)
$9.95
Out of Stock
Idle Mixture Screw Springs
ID .204 Length .590
Part # 66-51
Average Rating(16)
$1.95
In Stock
Holley 1 Barrel Float Spring
Part # 66-75
Average Rating(1)
$1.49
In Stock
Holley 1904 Diaphragm Enrichment Valve
Holley 1904 Enrichment Valve. Fits all 1904 holley carburetors.
Part # 70-6
$8.95
In Stock
Holley 1920 Carburetor Valve Lever Spring
Holley 1920 valve lever spring.
Part # 66-82
$4.95
In Stock
Holley 2280, 6280C Rubber Vent Valve
Holley 1946, or 6146 valve vent.
Part # G797
$0.95
In Stock
Screw - 8-32 x 5/16
8-32 x 5/16"
Part # 80-42
Average Rating(1)
$0.39
In Stock
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Rochester Main Jet
Average Rating(27)
$5.25
[availability]
Carter Metering Jets
Average Rating(10)
$5.25
[availability]
Autolite & Motorcraft Carburetor Main Jet
Average Rating(44)
$5.25
[availability]