Small Block Chevy Serpentine Crankshaft Pulley Billet March SBC 350 High Flow
6-rib Aluminum Serpentine High Water Flow Ratio Crank Pulley for Chevy Small Blocks with Short Water Pumps. Designed to Replace Factory V-belt or Steel Serpentine Pulleys. 5.625 Standard Rotation Short Water Pump. 6-rib Serpentine Crank Pulley (7).