Carbureted BBC Supercharger Kit (V-7 YSi-Trim, Polished)

Carbureted BBC Supercharger Kit (V-7 YSi-Trim, Polished)


Note: Currently Vortech products are experiencing 3-4 week delays. Please be aware that this part may not ship for several weeks when you order.

SKU: V4GA218-048 Category:


Universal Big Block Chevy Carbureted Supercharger System

is a “universal” supercharger kit designed for vehicles equipped with carbureted
big block Chevrolet engines.

  • This system
    requires the installer to supply a high volumefuel pump and properly jetted
    4150 style carburetor unit (with mechanical secondaries)
  • We have verified
    this kit to fit on 1964-1972 Chevelle / Malibu models equipped with a cowl
    induction hood. Minor bottom-side hood support modifications may be required
    depending upon the type of intake manifold installed on the engine.
  • This kit
    may also fit other Chevrolet models, but has not been confirmed
  • Horsepower
    gains (depending on boost levels, engine volumetric efficiency etc.): 30-75%+
  • Supplied
    pulley ratio will produce approximately 5-6 psi at 5000 rpm on a mildly
    modified 454″ engine
  • Installation
    time: 4-10 hours depending on application


  • V7 YSi-trim
    supercharger with 3.33″ pulley 10-rib (CW rotation; straight discharge)
  • Cast aluminum
    mounting bracket with all necessary hardware
  • New twin
    1/2″ thick billet aluminum mounting plates for rigid supercharger attachment
  • Supercharger

    • Belt
      tensioner with dual bearing, billet aluminum idler pulley
    • Includes
      61.8” 10-rib belt, billet aluminum accessory drive crank pulley (3 groove)
      with hard anodize finish and spacer for use with long water pump spacing
    • 10-rib
      billet aluminum supercharger crank pulley with hard anodize finish (7”
      o Available drive component accessories to convert to 36 or 50mm wide
      8mm pitch cog drive. See optional components below for part numbers
  • 3.5” diameter
    cast aluminum discharge tube assembly with clamps, silicone sleeves and
  • Supercharger
    oil drain assembly
  • Supercharger
    oil feed assembly
  • Cast aluminum
    carburetor enclosure assembly (use with 4150 Holley or Demon Carburetor)

    • Enclosure
      features front and rear –8 fuel inlet ports as well as multiple locations
      for pressure/vacuum connections. Linkage arms, splined shaft, and left/right
      hand spherical rod ends are included for simple throttle connection
      and adjustment.
    • Optional
      fuel line kits are available. They include custom bent stainless steel
      lines, billet -8 bulkhead adapter with fuel pressure port and plug,
      -8/-6 junction tee, aluminum swivel hose ends and USCG approved fuel
      hose. See optional components below for part numbers.


No warranty on race/heavy-duty superchargers.


system was designed to fit on engines equipped with a “long” water pump. Vortech
includes a 3-groove accessory drive crank pulley (for use with “long” style
water pumps only). If this kit is to be installed on an engine equipped with
a “short” water pump, a custom accessory drive crank pulley and spacer will
be required.

engines equipped with power steering, a remote reservoir (GM “type 2”) style
pump will be required as well as an optional Vortech power steering pump bracket
and pulley assembly. Depending on the vehicle, power steering lines may require

steering pump: OE on 1987 GM Pontiac Sunbird, NAPA # 20-874

power steering bracket/pulley assembly: V4GA110-010

Additional information

Weight 80 lbs