SKU: RCD-202200-0002-ASSY
202200-0002-ASSY RCD Engineering Crank Support Complete assy. with Hub and Bolt BILLET RCD Small Block Chevy, std length for use with No Accessory pulley

Beware of some companies selling RCD look a like stuff ------  ours is Real 

Minimum Size lower Pulley is  55 Tooth 8mm 

Small Block Chevy Crankshaft support -   For High Boost engines , or overdrives 20% or More

The Blower will try to pull the crankshaft up into the upper main bearing without a support , often breaking off the snout of a small block crankshaft  -  This helps that issue by putting the crankshaft in a more neutral  support fashion.  Sort of like having a 6th main bearing. 

With RCD Hub, and Special Hub Bolt   

NEW  RCD   ALUMINIUM CRANK SUPPORT SYSTEM:

You can add  any 6-3/8" RCD Trigger wheel or Degree Wheel to  this hub.

Not room for a 1V accessory pulley - See our Extended SB Support for  using a 1V accessory  drive

Bearing rated to over 9000  RPM