Crank Support BB Chevy - BB Chevy Made in USA With 1 OD Snout to drive accessories. Big Block Chevy Crankshaft support. For High Boost engines, or overdrives 30% or More- You will eventually have Upper main bearing failure. Does NOT come with blower pulley and crank trigger wheel - Does come with the mandrel which interlocks into your blower pulley. The Blower will try to pull the crankshaft up into the upper main bearing without a support, often burning up the upper front main bearing - 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 an RCD hub. 1 ALUMINIUM FRONT PLATE WITH BEARING - Powder Coated Black.
2 FLANGE STEEL SNOUT PIECE with 1 keywayed shaft to allow you to drive a fuel pump or dry sump if desired. 3 ALUMINIUM STAND OFF 4.
4 ENGINE BLOCK PLATES THAT MOUNT TO BLOCK. Cannot be used with an accessory pulley. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engines & Engine Parts\Crankshafts".digger" and is located in this country: US. This item can be shipped worldwide.