Holley 1850-2 4 Barrel 4160 Carb 600 CFM Vacuum Secondary Manual Choke GM / Ford / Mopar
20 Hours
13
0
$75.00
Description
Condition
Payment Types Accepted
VenmoPlease check out my other listings. You never know what madness might be lurking there.
The Holley 1850-2 is a 600 CFM, 4-barrel carburetor featuring vacuum secondaries and a square-bore flange pattern. Designed as a versatile, universal performance upgrade for street vehicles, it uses a single-feed fuel inlet and originally came with a manual choke.
Key Specifications
- CFM (Cubic Feet per Minute): 600
- Booster Type: Downleg
- Fuel System: Single feed, side-hung float bowls
- Secondary Type: Vacuum-operated
- Choke Type: Manual (cable-driven)
- Flange Type: Square bore
- Primary Jets: Standard 0.073" (though this can vary based on the specific application/revision)
- Primary Power Valve: 6.5" Hg (standard for most 1850 series)
- Emissions: Calibration varies (often non-emissions or specific vehicle calibrated)
Popular Applications & Modifications
The 1850 series is widely used across various classic vehicles, particularly popular on Ford and GM muscle cars. Because it is a 4160-series carburetor, it lacks a secondary metering block by default and uses a metering plate instead. However, many enthusiasts use the Holley 34-2 Upgrade Kit to convert it to a dual-feed system with a secondary metering block for better tuneability. When performing a rebuild, it utilizes the standard Holley KT-5415B37-119 Rebuild Kit.
Common Considerations
If you are restoring or setting up an 1850-2, keep these common tuning parameters in mind:
- Fuel Inlet Fitting: Uses a 9/16"-24 thread at the bowl, typically adapting to a 3/8" hose barb.
- Float Adjustment: Older side-hung bowls like those on the 1850 require removing the sight plug and adjusting the nut on top of the bowl to set the fuel level, though aftermarket "next gen" needles can eliminate some external adjustments.
Secondary Springs: Because the secondaries are vacuum-operated, the opening rate can be tuned by changing the vacuum spring inside the secondary diaphragm housing.
Carburetor ran when it was pulled off the car. However it has been sitting on the shelf for so long I would expect it will need a rebuild kit.Happy to consider any and all Offers and/or answer any and all Questions.
NO REFUNDS NO RETURNS Item is Sold As Is Where Is with no Warranty Implied or Otherwise. Description is to the best of my knowledge and may change at any time.
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Holley 1850-2 4 Barrel 4160 Carb 600 CFM Vacuum Secondary Manual Choke GM / Ford / Mopar
20 Hours
13
0
$75.00
Description
Condition
Payment Types Accepted
VenmoPlease check out my other listings. You never know what madness might be lurking there.
The Holley 1850-2 is a 600 CFM, 4-barrel carburetor featuring vacuum secondaries and a square-bore flange pattern. Designed as a versatile, universal performance upgrade for street vehicles, it uses a single-feed fuel inlet and originally came with a manual choke.
Key Specifications
- CFM (Cubic Feet per Minute): 600
- Booster Type: Downleg
- Fuel System: Single feed, side-hung float bowls
- Secondary Type: Vacuum-operated
- Choke Type: Manual (cable-driven)
- Flange Type: Square bore
- Primary Jets: Standard 0.073" (though this can vary based on the specific application/revision)
- Primary Power Valve: 6.5" Hg (standard for most 1850 series)
- Emissions: Calibration varies (often non-emissions or specific vehicle calibrated)
Popular Applications & Modifications
The 1850 series is widely used across various classic vehicles, particularly popular on Ford and GM muscle cars. Because it is a 4160-series carburetor, it lacks a secondary metering block by default and uses a metering plate instead. However, many enthusiasts use the Holley 34-2 Upgrade Kit to convert it to a dual-feed system with a secondary metering block for better tuneability. When performing a rebuild, it utilizes the standard Holley KT-5415B37-119 Rebuild Kit.
Common Considerations
If you are restoring or setting up an 1850-2, keep these common tuning parameters in mind:
- Fuel Inlet Fitting: Uses a 9/16"-24 thread at the bowl, typically adapting to a 3/8" hose barb.
- Float Adjustment: Older side-hung bowls like those on the 1850 require removing the sight plug and adjusting the nut on top of the bowl to set the fuel level, though aftermarket "next gen" needles can eliminate some external adjustments.
Secondary Springs: Because the secondaries are vacuum-operated, the opening rate can be tuned by changing the vacuum spring inside the secondary diaphragm housing.
Carburetor ran when it was pulled off the car. However it has been sitting on the shelf for so long I would expect it will need a rebuild kit.Happy to consider any and all Offers and/or answer any and all Questions.
NO REFUNDS NO RETURNS Item is Sold As Is Where Is with no Warranty Implied or Otherwise. Description is to the best of my knowledge and may change at any time.
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