Thumbnail Filmstrip of Crank Support SB Chevy -with NO accessory pulley , Has Mandrel included with 1" Nose keywayed Images
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.
MUST be used with a Blower Hub- Unless you have a double keyway balancer with a 6 bolt blower Pattern
NEW ALUMINIUM CRANK SUPPORT SYSTEM:
to use a crank trigger , you have to use this hub Below
1) ALUMINIUM FRONT PLATE WITH BEARING -
2) FLANGED STEEL SNOUT PEICE ( Bolts into an existing 6 bolt Blower hub or six bolt balancer
3) ALUMINIUM STAND OFF (4 - 6.25") std *
4) ENGINE BLOCK PLATES THAT MOUNT TO BLOCK
Drive mandrel has a 1" Dia to accept a drive pulley for Dry sump, or fuel Pump
THIS PIECE ALLOWS CHANGE OF BLOWER BELT WITH EASE, AND ALLOWING A BIGGER PULLEY CAN BE ALLOWED WITH THE SUPPORT.
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) There is an option to extend the support out one inch to accommodate a V accessory Pulley-See our KS-SBCS-extended IF you are going to use a 1V accessory pulley between the hub and blower pulley