SKU: KS-BBCS-Extended
Crank Support ( Crankshaft Support ) Billet - Big Block Chevy, Crank Support

EXTENDED   

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)