Thumbnail Filmstrip of BB Chevy RCD Big Block Chevy Blower Crank Hub , w Dual 1/4" Keyway -Fits All BB Images
RCD BB Chevy Long Blower Hub ( fits everything except RCD Gear Drives )
used with the 6-3/8" Timing Wheel and 200,000 psi Bolt
Comes with Bolt with 200,000 psi tensile strength - http://www.alkydigger.net/proddetail.php?prod=RCD358850-38
Includes the 6-3/8" Non Magnet Timing degree ring and two 1/4" Keys
Our crank hubs are machined from heat treated chrome-moly steel billet.
Each hub has two 1/4” keyways 180° 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.
We also have the same kit but with the Crank Trigger wheel