Thumbnail Filmstrip of 202403-07 RCD Blower Hub - Big Block Chevy Blower Hub 3/16" and 1/4" Keyways fits all BB Chevies Images
RCD HUB BB CHEVY 202403-07 Called Long - compare it to 202403-02 called Short
Will Fit with all Timing Covers and Gear Drives
Also used for SB Chevies w BB Crank Snouts
typically used with the 7" Crank Trigger Wheel , this hub pushes the pulley forward by 1/2" over the Short -02 hub.
Bolt with 200,000 psi tensile strength - http://www.alkydigger.net/proddetail.php?prod=RCD358850-38
Our crank hubs are machined from heat treated chrome-moly steel billet.
Each hub has one 3/16 and one 1/4 keyway 180 degrees apart, six 3/8-24 threaded holes in an evenly spaced pattern and a black oxide finish.
A stepped profile is machined around the holes for weight reduction and to lock-on the degree ring.
Allows the installation of the 7" RCD Crank Trigger Wheel