K&N Stubstack Air Horn 85-0500 Description
- Designed to fit 4 barrel popular models in the series
- Increases the airflow of carburetors by decreasing the restriction around the choke horn
- Increased air flow by reducing the restriction
- Reduces turbulence, improves metering accuracy
- 0.30 lb (0.14 kg)
For use without an air cleaner, but will hold down a cold air scoop
Increases the airflow by reducing restriction
Reduces turbulence, improves metering accuracy
This K&N Stubstack is designed to be used on Holley 390-850 cfm square bore carbs (4150/4160), that have had the choke horn milled off, but do not use an air cleaner. The full radius design helps to increase the airflow for drag racing. Will also hold down the base plate of a cold air scoop. Will not work with K&N Custom Chrome Racing Air Cleaners. The K&N Stubstack is designed to increase the airflow of carburetors by decreasing the restriction around the choke horn. Stubstacks fit inside the air cleaner housing and slide snugly down over the choke horn.
Height 0.56 in (14 mm)
Length 6.54 in (166 mm)
Material Used Polyurethane
Package Quantity 1
Product Box Height 2 in (51 mm)
Product Box Length 6.5 in (165 mm)
Product Box Width 6.5 in (165 mm)
Product Style Accessories
Weight 0.3 lb (0.1 kg)
Width 6.54 in (166 mm)
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