Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body

#91012017

Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body

Name: Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body
Brand: Demon Carburetion
SKU: 91012017
Price: 529.95 USD
Availability: InStock
Rating: 4.9 (22 reviews)

22 Reviews

10 Questions

The dual mounting bolt pattern will fit any street 4bbl intake (square flange or spread bore)
Aerospace Composite fuel bowl offers significant heat insulation benefits over aluminum fuel bowl
Features 2 stage metering rods control easily accessible without carburetor disassembly or removal

Type:

625 CFM / Polymer

625 CFM / Burnished750 CFM / Burnished 750 CFM / Polymer 750 CFM / Black

$529.95

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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, 625 CFM CFM

The dual mounting bolt pattern will fit any street 4bbl intake (square flange or spread bore)
Aerospace Composite fuel bowl offers significant heat insulation benefits over aluminum fuel bowl
Features 2 stage metering rods control easily accessible without carburetor disassembly or removal
An integrated fuel bowl/main body design with gasket above fuel level and no plugged passages to eliminate all potential leak paths
A small 1-3/8" primary throttle bores combined with proven Triple-Stack™ boosters deliver amazingly crisp throttle response and drivability

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Key Specs

Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	600-699 CFM
CFM	625 CFM

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Demon Carburetion 1901 Details

WICKED POWER! The ALL NEW Street Demon™ redefines the street carburetor with clean looks and ease of use! The Street Demon offers enthusiasts a straightforward four barrel carburetor designed to deliver a stable idle, amazingly crisp throttle response and smooth performance. Its optimized calibration and dual mounting pattern make it Run–Ready™ for a large variety of engines and vehicles!

625 CFM airflow - ideal for use on most stock to mildly modified V8s
Dual mounting bolt pattern - fits any street 4bbl intake (square flange or spread bore)
Electric Choke Management means easy cold starts
Single fuel inlet for simple installation
Aerospace Composite fuel bowl offers significant heat insulation benefits over aluminum fuel bowl - keeps fuel up to 20° cooler for optimum performance with modern fuels
Integrated fuel bowl/main body design with gasket above fuel level and no plugged passages to eliminate all potential leak paths
Small 1-3/8" primary throttle bores combined with proven Triple-Stack™ boosters deliver amazingly crisp throttle reponse and drivability, superior fuel atomization and improved fuel economy
Goggle Valve Secondary (GVS™) throttle plate delivers over twice the aire flow of the primary bores for power you can hear and feel
GVS™ makes total air flow 625 CFM while maintaining the crisp throttle response delivered by small primary bores
Secondary air valve control - torsion spring valve control/adjustment permits seamless primary to secondary throttle response regardless of the throttle opening rate (unique contoured profile developed for better cylinder to cylinder fuel distribution)
Smooth styling - patented timeless design fits modern as well as traditional themed vehicles (Patent No.: US D648,746 S)
Developed from the ground up with great looks and ease of use in mind
Easy to clean and maintain
One-piece air horn assembly
2 Stage metering rods control easily accessible without carburetor disassembly or removal
4 optional vacuum step-up springs available to dial in hi-end performance
Optional sets of metering rods available to refine calibration
Multiple primary and secondary main jet orifice sizes available
Patent pending mechanical design
Integrated 700R4/200R4 transmission kickdown cable mounting location for proper shifts
Ford A/T kickdown(does not work with AOD transmissions)
Available TPS kit allows use with 4L60 and 4L80 transmissions

Charts

Important Notice (PDF)

Guides & Documents

Carburetors Installation Instructions (91012017)

Determining the Best Performance Carburetor For Your Application

Carburetors Technical Information (91012017)

Carburetors Installation Instructions (91012017)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Demon Carburetion 1901 Specifications

KEY SPECS
MFG. Part #	1901
Brand	Demon Carburetion
Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	600-699 CFM
CFM	625 CFM
Carburetor Flange Type	4-Barrel Square Bore
Finish	Shiny
Material Type	Aluminum
Color	Natural
Secondary Type	Air Valve
Fuel Inlet Type	Single
Gasket(s) Included	Yes
New or Remanufactured	New
Throttle Linkage Type	Universal
Supercharged Application	No

GENERAL
Bolt Hole Pattern	5.160" x 5.625"
GTIN Code	792898400061
Sold in Quantity	Each

Ratings & Reviews

4.9

22 Reviews

Overall Assessment

Customers highly appreciate the product for its fit, performance, and ease of installation. They noted that it works great right out of the box, often requiring few or minor adjustments. The carburetor has proven to be a dependable and efficient replacement for other brands, providing smooth idle, power, and less hesitation. Users fitted it on various car models and it consistently delivered high performance. Despite some individual concerns with aspects like choke flap and throttle cable hole, overall satisfaction is high and many would buy again. The product offers a notable upgrade and is frequently recommended by customers for its superb features and performance.

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4.9

22 reviews

Most Liked Positive Review

5.0

Easy bolt on - very minor setup - Demon carbs are great!!!

carb. replacement on a 428 Ford engine in a 1961 Ford Starliner.

Most Liked Negative Review

3.0

Choke Plate Sticky, Otherwise, Not Bad

I purchased this carburetor after reading many different reviews stating it was a great bolt-on piece requiring minimal adjustment. I installed the carb on a Mopar 360. It started and idled almost perfectly. After a run down the road I noticed right away that the secondary required adjustment. The manual stated it wouldn't take but a quarter or half turn. I ended up going about 2 1/2 turns before it would transition properly without stumbling on its face. After the car sat overnight I noticed that it wouldn't start. After popping the breather off I noticed that the choke flap was stuck closed. It took considerable force to break it loose again. This has happened two more times since I've installed it. I haven't had a chance to remove the flap and remove a small amount of material, or mess with an exchange. Another small issue that I noticed is that the hole for the throttle cable is not as far away from throttle plate axis as a Holley carburetor. This makes the throttle throw shorter, and thus the pedal throw is shorter. Now the throttle pedal only goes about 3/4 of the way to the floor when the carb butterflies are opened all the way. This is using the stock cable and pedal assembly on an E-body Mopar. I may have to modify the original pedal assembly, or live with the short throw. An increased distance from the throttle hole to the butterfly axis, like a Holley, would have solved this problem. I'm pretty satisfied with the smooth idle, and the way the carburetor performed after adjustment. I would have given it more stars if I didn't have the choke flap and throttle cable hole issues.

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Sort Reviews

Would buy again.

5.0

2 months ago

tomeboy

Denton, NE

Verified

Looks and fits great, pretty much ready to run right out of box and no leaks.

Would Recommend

Yes

5.0

2 years ago

Sbc guru

North georgia

Verified

I'm using on sbc that runs constant 3200 rpm on hwy and doing great Had to lòsen secondary air since low vacuum but great carb

Would Recommend

Great

5.0

2 years ago

Omaha, NE

Verified

Perfect for our early Bronco's with 5.0 roller motors

Would Recommend

i would recommend the product to many.

5.0

5 years ago

mike

omaha ne

Verified

it is on a 1985 chevy s10 v8 350.

Would Recommend

Nice Carb. looks good and fit perfect.

5.0

6 years ago

Dave

Minnesota

Verified

Mounted to a SBC 350, ran perfect right out of the box!

Would Recommend

Highly recommend!

5.0

6 years ago

joilstoils

Fitchburg, MA

Verified

Super carb, best ive owmed minor adjustments only...

Would Recommend

Great carb , easy set up

5.0

6 years ago

Dinky

Clinton s.c.

Verified

Great carb , easy set up and installation, perfect for mild small block builds

Would Recommend

Scream'n Demon

5.0

7 years ago

23' T-Bucket

Odessa, Texas

Verified

Perfect out of the box

Would Recommend

I would buy this product again

5.0

7 years ago

Picky plumber

Shenandoah iowa

Verified

Installed on a 351w. Easy to adjust and run.

Would Recommend

Love this product

5.0

7 years ago

gerald

Manitoba

Verified

Love demon carbs but should have got extra fuel line to hook it up

Would Recommend

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Questions & Answers

10 Questions • 12 Answers

Sort Questions

Is there a bracket kit so I can use this with a ford AOD transmission

by Nick

• 4 years ago

1 answer

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would this work on a stock 283 chevy

by 67 step

• 8 years ago

2 answers

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will this work at 6500 ft altitude out of the box on 350 chevy ?

by CL

• 9 years ago

1 answer

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Can you use with a TH 350?

by JJ

• 9 years ago

2 answers

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How does this unit line up compared to a Qudrajet in terms of airhorn size, position and height? It would go on a Ford with a shaker hood scoop that exits from hood.

by David

• 10 years ago

1 answer

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Will this Carb fit on a stock 1968 Ford mustang 302 4 barrel manifold?

by Rick

• 10 years ago

1 answer

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I have a stock 1966 mustang with a 289. Is a 625 cfm too much for a 289?

by Eric

• 10 years ago

1 answer

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Should I use the 625 cfm or the 750 cfm street demon carburetor on my Oldsmobile 455 engine with 9.1 compression and a stock cam?

by Steve

• 10 years ago

1 answer

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Will this fit on a Holley street dominator spread bore manifold ?

by Dave

• 11 years ago

1 answer

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Max fuel PSI? What is the max fuel PSI for this carb?

by A1CCrash7

• 13 years ago

1 answer

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