RBS SUPERCHARGERS IS CLOSED UNTIL DEC 5TH.
Online ordering will be available from November 25th, - Dec 5th. No phone or email will be available at this time. We apologize in advance, for any inconvenience this may cause and look forward to welcoming you back on December 5, 2024.
*** IN STOCK SHIPS TODAY *** BBC crank hub short, made from billet heat treated steel, has one .250" and one .187" keyways 180 degree's apart. Uses 2.782" bolt circle with a 2.00" pulley register and is made to work with 4-71 thru 16-71 roots or screw superchargers. Pulley bolt threads are 3/8-16" coarse.
This hub is for all internal balance BBC engines including 396, 402, 427, 454 and many more. Hub measures from pulley mounting surface to crank gear 1.650". Hub does includes a piece of timing tape.
RBS can provide a 7in. bolt on degree ring for additional cost #2300-0032.
RBS SUPERCHARGERS IS CLOSED UNTIL DEC 5TH. 
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