Stubstack, K&N, 4150/4160 Holley

4150/4160 Carburetor Stubstack Air Horn by K&N®

The contoured air horn reduces inlet turbulence inside a compatible carburetor air cleaner.

This K&N® Stubstack fits inside the air cleaner and slides over the choke horn of most Holley® 4150 and selected 4160 carburetors with high or low choke horns. The contoured polyurethane inlet reduces turbulence and restriction as air enters the carburetor, supporting airflow and metering consistency. Check the specific carburetor and air-cleaner clearance before installation. It is an air-entry aid, not a replacement air filter or a guarantee of a fixed horsepower gain.

• Most 4150 and selected 4160 carburetors • High or low choke-horn compatibility • Contoured polyurethane air-entry insert • Installs inside the air cleaner • Helps reduce inlet turbulence and restriction