This K&N Stubstack is designed to be used with Holley 390-850 cfm square bore carbs (4150/4160), that have had the choke horn milled off and still use an air cleaner. Eliminates the need for hand polishing and radius work. Will work with all K&N Custom Chrome Racing Air Cleaners, including Tall Velocity Stack Air Cleaners. The K&N Stubstack is designed to increase the airflow of carburetors by decreasing the restriction around the choke horn.
  • Designed For Increased Performance
  • Utilizes The Finest Quality Components
  • Reduces Restriction
  • Straightens And Speeds Up Air-Flow
  • Will Not Fit All Carburetors
  • May Have To Alter Stub stack
  • Polyurethane Material
  • Easily Filed And Sanded
Attributes
Country of Origin (Primary) US
Emission Code Legal US
Harmonized Tariff Code (Schedule B) 3921190000
Hazardous Material Code N
Height 1.69 in (43 mm)
Length 5.13 in (130 mm)
Life Cycle Status Code 2
Life Cycle Status Description Available To Order
Material Used Polyurethane
MSDS Required Flag N
NAFTA Preference Criterion Code B
Package Quantity 1
Product Style Accessories
Warranty Time 3
Weight 0 lb (0 kg)
Width 5.13 in (130 mm)
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K&N 85-0400 Stubstack Air Horn

  • Brand: K&N
  • Product Number: 85-0400