Description
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.
Resources
Installation Instructions
Specifications:
| Description_DEF | Carburetor Mount |
| Description_DES | Stubstack Air Horn |
| Description_EXT | This K&N Stubstack air filter 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. |
| Description_INV | Stubstack Air Horn |
| Description_MKT | 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. |
| Description_SHO | Stubstack Air Horn |
| height | 0.563 in (14 mm) |
| height | 3.75 |
| length | 6.54 in (166 mm) |
| length | 7.375 |
| LTL | N |
| Material Used | Polyurethane |
| Package Material | Paperboard |
| Package Quantity | 1 |
| Package Type | Box |
| Product Style | Accessories |
| Prop 65 (C, R or CR) | CR |
| Prop 65 – Short Label | WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov |
| Prop 65 Warning Label | https://www.knfilters.com/images/l/prop65.jpg |
| Prop 65 Yes/No | Yes |
| Title | K&N 85-0500 Stubstack Air Horn |
| Warranty | 1 Year Limited |
| weight | 0.3 |
| weight | 0.3 lb (0.1 kg) |
| width | 6.54 in (166 mm) |
| width | 7.375 |
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