Thumbnail Filmstrip of 202200-0002-ASSY SB Chevy RCD Crank Support Complete assy. with Hub and Bolt RCD Genuine Images
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