Demon Marine Speed Demon Carburetors


Barry Grant
Demon Marine Speed Demon Carburetors

Product images may differ from actual product appearance.

Designed not only to meet but exceed USCG carburetor guidelines, Marine Speed Demons are the standard for marine carbs, ideal for enthusiasts who want to repower or upgrade engines with cam profiles up to 240° duration at .050" lift. They also share many great features of their land equivalent, the Speed Demon.

Note: Demon float bowls use special 9/16" x 24 TPI inlet fittings available in standard, filtered, or swiveled sizes.

Highlights

  • 650, 750, or 850 cfm
  • Contemporary design
  • J-Tube Bowl Vents
  • Sealed Throttle Shafts
  • Removable Billet Baseplate
  • Billet Metering Blocks
  • Built-In Power Valve Blowout Protection
  • Four-Corner Idle Adjustment
  • Large-Capacity Float Bowls with Sight Glasses
  • Most common tuning parts interchange from other manufacturers

    Need help choosing your Demon? Click here.

    Billet Baseplate

    The first large carb with removable baseplate. Billet baseplates on applicable Demon carbs are virtually unbreakable, unlike their cast counterparts.    		Air Intake

    A new die-cast technique provides the most accurate method of producing concentric venturi without misalignment or shift.    		Fuel Bowl

    Demon float bowls come complete with sight glasses, which permit float level adjustments without risk of fuel spillage.     		Metering Blocks

    CNC-machined metering blocks from billet aluminum prevent porosity and variations in the metering circuits.



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    Marine Speed Demon Carburetors

    		132-1402010VEM
    		Marine Speed Demon Carb
  • 750 cfm
  • Vacuum secondary
  • 393-477/Mild 427-455ci
    View this item
    		• $562.99
    Ships
      132-1563020VEM-R
    		Marine Speed Demon Carb
  • Remanufactured
  • 850 cfm
  • Annular Boosters
  • Vacuum secondary
  • Mild 468-510 big blocks
    View this item
    		• $464.99
    Ships