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$638.99
Demon 1282020 650 CFM Speed Demon Carburetor, Mechanical Secondaries
Demon 1282020 650 CFM Speed Demon Carburetor, Mechanical Secondaries

Demon 1282020 650 CFM Speed Demon Carburetor, Mechanical Secondaries

Universal Fit, 4-Barrel Carburetor Barrels, Gasoline Fuel Type, No Choke Choke Type, Dichromate

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Demon 1282020 650 CFM Speed Demon Carburetor, Mechanical Secondaries
Demon 1282020 650 CFM Speed Demon Carburetor, Mechanical Secondaries
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We estimate this item will ship on or before July 25th.
Part # 4251282020
$638.99
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 3 business days for Demon Carburetion to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Carburetor Barrels:
4-Barrel
Fuel Type:
Gasoline
Choke Type:
No Choke
CFM:
650 CFM
CFM Range:
600-699 CFM
Carburetor Flange Type:
4-Barrel Square Bore
Finish:
Dichromate
Material Type:
Aluminum/Zinc
Color:
Natural
Secondary Type:
Mechanical
MFG. Part #:
1282020
Fuel Inlet Type:
Dual
Sold in Quantity:
Each
Booster:
Annular
Emission Code:
3
Supercharged Application:
No
Throttle Bore:
1.688 inch
Venturi Diameter:
1.280 Inch
Vacuum Ports:
1 timed (spark) port, 1 full, and 1 PCV port
GTIN Code:
792898304499
Bolt Hole Pattern:
5.160" x 5.625"

Info

The Speed Demon series is the most formidable performance street carburetor available today. It features the most advanced design manufacturing processes that provides street enthusiasts with racing carburetor technology in a very drivable package. The Speed Demon line offers a wide range of sizes and in VE-series (vacuum secondaries, electric choke) or twin-squirter (mechanical secondaries) designs. Across the range of sizes, from 575 cfm to 850 cfm, the Speed Demons deliver balanced, high-velocity airflow and exceptional fuel metering capacity to match the fuel requirements most street engines. A Speed Demon carburetor is ideal for muscle cars, stock rebuilds, tow trucks, mild performance applications and crate motors. They are designed for engines with cam profiles between 220 and 240 degrees duration at 0.050".

  • Clear Dichromate finish for good looks and corrosion protection
  • Calibrated for stock and mild performance 283 - 390 cid V8 engines
  • Mechanical secondaries for awesome tire turning performance
  • Dual accelerator pumps for additional fuel under initial acceleration
  • Billet Metering Blocks for exceptional fuel metering capacity
  • 4 corner idle allows you to precisely control your idle system
  • Billet Baseplate with Idle-Eze allows precision fine tuning of the idle speed resulting in a smoother transition from off-idle
  • Large capacity float bowls eliminates fuel starvation
  • Large glass float-level sight windows for easy and safe fuel level adjustments
  • Dual feed fuel inlets for constant high volume fuel delivery
  • Quik Release non-stick gaskets for easy jet changes

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • In this Tech Tip, John offers up a couple solutions to a somewhat common problem of fuel expansion on the older vehicles.
  • Do you have carbs sitting on the shelf waiting to be put on? Heath talks about the preparation and parts needed to install a set of Super 9-7 Carbs on his 1949 Flathead 8BA V8 Model A.
  • There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

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