Thumbnail Filmstrip of Crankshaft Support BB Chevy EXTENDED Billet - must use a Blower hub or 6 bolt balancer Images
Crankshaft Support BB Chevy NEW ALUMINIUM Billet CRANK SUPPORT SYSTEM:
THIS PIECE ALLOWS CHANGE OF BLOWER BELT WITH EASE, AND ALLOWING A BIGGER PULLEY CAN BE ALLOWED WITH THE SUPPORT.
This support has extended legs to allow the use of a 1V Accessory pulley between the Hub and Blower Pulley
For High Boost engines , or overdrives 20% or More
The Blower will pull the crankshaft up into the upper main bearing without a support
Requires the use of a blower HUB, or Blaancer with a dedicated 6 bolt blower pattern
You can use a balancer IF it is drilled for the 6 bolt Blower Pulley pattern
* Will fit using a 1V accessory pulley https://www.alkydigger.net/product/TBS-4212.html
Has a 1" Snout to the front of the crank mandrel to drive a fuel pump or a Dry Sump
1) ALUMINIUM FRONT PLATE WITH BEARING-
2) FLANGED STEEL SNOUT PEICE
3) ALUMINIUM STAND OFF (4 - 6" )
4) ENGINE BLOCK PLATES THAT MOUNT TO BLOCK
Non returnable - so measure well .
*Measurement from the block to the inside of the support 6-7/8 " - to the outside of the support 7-1/2"
(7-1/4" if you include the bolt head)