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K&N Stubstack Holley 390-850cfm 4150/4160 carbs that have had choke horn milled off & still use an air cleaner

K&N 85-0400

599-85-0400

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Estimated to ship directly from the manufacturer on 08/20/18
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K&N Stubstack Holley 390-850cfm 4150/4160 carbs that have had choke horn milled off & still use an air cleaner $28.99
Stubstack
  • Holley 390-850cfm 4150/4160 carbs that have had choke horn milled off & still use an air cleaner

  • K&N 85-0400 Details

  • Improves Metering Accuracy
  • Increases Airflow
  • Reduces Restriction
  • Straightens And Speeds Up Air-Flow
  • Will Not Fit All Carburetors
  • May Have To Alter Stubstack
  • Polyurethane Material
  • Easily Filed And Sanded

  • Specifications:

    Fits with Air Cleaner
    Yes
    Quantity
    Sold individually
    Requires Choke Horn Milled Off
    Yes
    Stubstack Finish
    Black
    Stubstack Material
    Polyurethane
    Package Quantity
    1
    Weight (lbs.)
    0 lb (0 kg)
    Product Style
    Accessories
    Height
    1.69 in (43 mm)
    Material Used
    Polyurethane
    Length
    5.13 in (130 mm)
    Width
    5.13 in (130 mm)
    Manufacturer's Part Number:
    85-0400

    K&N Stubstacks are a very simple way to bolt on more HP for your carbureted engine. Stubstacks smooth out the rough casting and air transition turbulence common on most carburetors. By smoothing out the transition from air cleaner to venturi you allow for not only a higher flow rate, but better metering accuracy which leads to better throttle response and more power throughout the throttle curve. Applications listed below.

    Features:
  • Straightens and speeds up air flow through your carburetor
  • Available for most popular carburetors
  • Better fuel metering

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