*** IN STOCK SHIPS TODAY *** Hemi crank hub, made from billet heat treated steel, has two .250" keyways 180 degree's apart. Uses 2.782" bolt circle and is made to work with 4-71 thru 18-71 roots and screw superchargers. Included in this kit is a hub, alum. degree ring with 360 degree's of marks, six grade 8 bolts and washers.
This hub is for all internal balance Hemi engines including 426, 440, KB, BAE, TFX and many more. Hub measures from pulley mounting surface to crank gear 1.200".