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Performance Products > Stubstack Air Horn

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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. [MORE]
  • Fits Holley 4150/4160 carburetors with the choke horn milled off
  • Fits inside the air cleaner housing
  • Increases the airflow by reducing restriction
  • Reduces turbulence, improves metering accuracy
Available Information
Installation Instruction Sheet

Part 85-0400 Product Specifications
Product Style: Accessories
Height: 1.69 in (43 mm)
Length: 5.13 in (130 mm)
Material Used: Polyurethane
Package Quantity: 1
Width: 5.13 in (130 mm)
Weight: 0.04 lb (0.02 kg)
Product Box Length: 10.4 in (264 mm)
Product Box Width: 10.1 in (257 mm)
Product Box Height: 3.7 in (94 mm)


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