https://www.alkydigger.net/product/RCD-202200-0002assy.html
RCD Engineering Crank Support - Small Block Chevy, Donovan, Crank Support
RCD Equipment is the Finest Made at any Price- Used on Top Fuel-Top Alcohol-Pullers- most all Professional engine Builders .
NEW ALUMINIUM CRANK SUPPORT SYSTEM:
1) ALUMINIUM FRONT PLATE WITH BEARING - Powder Coated Black
2) FLANGED STEEL SNOUT PEICE
3) ALUMINIUM STAND OFF (4)
4) ENGINE BLOCK PLATES THAT MOUNT TO BLOCK
5) ASSEMBLY FASTENERS
THIS PIECE ALLOWS CHANGE OF BLOWER BELT WITH EASE, AND ALLOWING A BIGGER PULLEY CAN BE ALLOWED WITH THE SUPPORT.
Choose option that adds a 1" Mandrel to the crank snout to drive a fuel pump
Measurement from the block to the inside of the support 7-1/2" - to the outside of the support 7-3/4" (8-1/4" if you include the bolt head)
Price: $489.00
Fuel pump drive snout option:
Billet mandrel w 1" Drive (+$75.00)