Uses a large pulley retaining nut to hold the blower pulley onto the blower hub and allows crew chiefs to make quick last minute overdrive changes and stops pulley bolt breakage which can be the difference of winning the race or not.
Hub has twenty six tooth spline and is made to work with 6-71 thru 18-71 roots and screw superchargers.
This hub is for all Hemi engines including 426, 440, KB, BAE, TFX, CN and many more. Hub measures from pulley mounting surface to crank gear 2.70" and works with Bryant and Winberg crankshafts with the PSI spline. Hub is designed to be used with 3/4" crank bolt.
Racer must use a splined center flange bottom blower pulley with this type of crank hub. Bearing race that is shown in the picture is sold separate and is part #600-0012 $33.00 which must be added to the hub when ordering.
Steel hub should use titanium pulley nut and titanium hub should use steel nut to help prevent the two like materials from galling the threads.
Pulley retaining nut, pulley retaining nut wrench and pulley spacers are all purchased separate.
Hub is available in steel or titanium and racer can choose from drop down menu.
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