SKU: KN85-0400

BRAND: K&N

Holley Substack
Suit 4150/4160 390-850 HP 4BBL Carburettors With No Choke Horn


In Stock
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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 carburettors by decreasing the restriction around the choke horn.

Part KN85-0400 Product Specifications
Height: 1.69 in (43 mm)
Length: 5.13 in (130 mm)
Material Used: Polyurethane

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