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Main Stud Kitfits Holden V6 Ecotec 3800
Inside Diameter - 32mm
Part Number: AF339-03
It adapts from the one knock sensor on the LS1 and convert over to the dual LS3/LSX knocksensor system
Inducer: 73mm
Holley Standard Main Jet #42 HO122-42 510 Series Full Flow Push Lock Main Stud Kitfits Holden V6Standard Main Jet #421 4 32" Thread, . 042" Hole Size (Pair) Brand: HOLLEY Part Number: HO122 42 Description: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number.
