Threading Tap for QJ Airhorn to Body & QJ Base to Body Threads and 2G Venturi Cl
Our Part # 4921

Cleans and restores damaged threads in the carburetor main body.

Quantity: 1 High Speed Steel Tap

Rochester Quadrajet and Dualjet Applications: This tap is for the screws used to secure the airhorn to the main body and also the screws used to attach the throttle base plate to the main body on Rochester Quadrajet carburetors.

Note: This tap will not work with the 2 tapered headed screws that are located above the primary bores and below the choke door on Quadrajet and Dualjet carburetors. See tap #4920.

Rochester 4G / FourJet Applications: This tap is for the screws used to secure the bowl cover to the main body.

Rochester 2G / Two Jet Applications: This tap is for the screws used to secure the bowl cover to the main body and also the screws used to attach the venturi cluster to the main body on Rochester 2G carburetors. Also fits 2G Idle Mixture Threads.