Holley Main Jets 77 #122-77 2533650 Visus 5/8"X20 NS HSS Bottoming

Visus 5/8"X20 NS HSS Bottoming Tap For producing precision threads by hand tapping

This bar has a 25mm Shank using a TNMG1604

Shank : 16mm dia straight

adaptors B + E

Holley Main Jets 77 #122-77 2533650 Visus 5/8"X20 NS HSS BottomingThese metering orifices control fuel flow into the metering system. They are rated in flow capacity cubic centimeters 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. Standard Main Jet . 077" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500