Needle and Seat early style w/2 screws - Rochester Quadrajet Carburetor Parts
Our Part # 3411

This needle and seat is for early style Q-Jets with O-rings and 2 screw hold down. The ID is .110". This style needle and seat is used on 1965, 1966 and early 1967 Q-Jets, replacing the original problem prone plunger assembly.

Small section diameter: .323"
Small section length: .300"
Large section diameter: .290" &.315"
Large section ring dia.: .375"
Large section length: .615"

Kit includes:
Brass bypass plug and O-ring
Seat flat gasket
Brass seat
Steel retainer
2 Screws
Needle
Needle attachment clip

Installation Note:
Included brass bypass plug and o-ring must be installed when using this needle and seat assembly. The large round passage located to the left of the needle and seat (when viewing as if carb is installed on engine) must be plugged with o-ringed brass bypass plug. Otherwise the fuel will uncontrollably enter the fuel bowl and flood the carburetor.