Product Summary

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

  • The Street Demon offers enthusiasts a straightforward four barrel carburetor designed to deliver a stable idle, amazingly crisp throttle response and smooth performance
  • Optimized calibration and dual mounting pattern make it Run–Ready™ for a large variety of engines and vehicles!
  • GVS™ makes total air flow 625 CFM while maintaining the crisp throttle response delivered by small primary bores
  • 625 CFM air flow - ideal for use on most stock to mildly modified V8s
  • 3" filter, triple chrome plated top and bottom bases, and securing studs and wing nut included

Comes as a Kit

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Key Specs

BrandDemon Carburetion
CFM625 CFM
FinishBall Burnished
Material TypePolymer
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Need To Know

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Details

Kit Includes:

  • (1) Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body
  • (1) Demon Carb 786004 14 Inch Air Cleaner Assembly

 

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

WICKED POWER! The ALL NEW Street Demon™ redefines the street carburetor with clean looks and ease of use! 

  • 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

 

Demon Carb 786004 14 Inch Air Cleaner Assembly

  • 14" in diameter
  • 3" deep filter element
  • Triple chrome plated
  • Low Profile
  • Two securing studs included: 1/4" x 20tpi (Street Demon) and 5/16" x 18tpi (all other Demons)
  • Tri-lobe wing nut is counter-bored and furnished with 1/4" and 5/16" internal threads

 

Specifications

KEY SPECS
BrandDemon Carburetion
CFM625 CFM
FinishBall Burnished
Material TypePolymer
GENERAL
Sold in QuantityKit
Carburetor Barrels4-Barrel
Carburetor Flange Type4-Barrel Square Bore
Fuel TypeGasoline
Choke TypeElectric
CFM Range600-699 CFM
ColorNatural
Secondary TypeAir Valve
Fuel Inlet TypeSingle
Gasket(s) IncludedYes
Bolt Hole Pattern5.160" x 5.625"

Ratings & Reviews

5

3 Reviews

Overall Assessment

Customers appreciate this carburetor for its superb performance enhancing qualities, consistent ease of starting, and exceptional throttle response in various classic cars, from a 1939 Chevy to a 1965 Mustang. The product effectively utilizes all 625 cubic feet per minute, accelerating smoothly, and significantly improving overall vehicle responsiveness. Users have also praised its ability to reduce exhaust odors, noting this major improvement over competitors. Ready to use straight out of the box, with minimal adjustments required, customers have repeatedly confirmed this carburetor as the best available in the market.

5

3 reviews

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I would buy this again

5.0

3 years ago

Flash

Ne

Verified

Works great on my 350 in my 1939 Chevy

Would Recommend

Mustang 1965 GT Fastback

5.0

4 years ago

Bob

Sebastopol, Ca

1965 Mustang Hi performance 289: This Demon carburetor is working out great. It is starting much easier. Push the pedal about a quarter one time to sit the choke, take the foot off the pedal and crank. Usually fires up on a second try with short cranks, run for about 30 seconds, tap the throttle, let run for another 30 seconds and it is ready to go. My headers are reading around 700 to 800 F degrees each tube and idling at 15" vacuum with 14 degrees advance. That is about as good as I can get it which is a great improvement. The throttle response is very good, med throttle is very good, full throttle is Wow I can not believe it with the secondary kicking in and it feels like it is uses all 625 cfm like it is made for it. What a great feeling! Can't say that about my 1850

Extremely Satisficed With This Carburetor!!

5.0

4 years ago

Carl B.

OKC, OK.

Verified

I installed a Street Demon on our 1958 Chevy Bel Air and it made all the difference in the response and removed the rich exhaust smells. I had used this type of carb. on our 1938 Chevy coupe several years ago and was pleased with it's performance, so I decided to get another one for the 58. Bolted on straight out of the box and only had to adjust the idle, all of the factory settings worked great! I believe that this is the best carburetor on the market at an excellent price, whether you have a budget or not.

Would Recommend

Showing 3 of 3 reviews

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