Moroso 63818 Alternator/Vacuum Pump Mounting Kit Small Block... For CSR Electric Water Pump This Moroso Alternator and Vacuum Pump Mounting Kit is for a Small Block Chevy with CSR Water Pump 170-901 Series and a Moroso Enhanced Vacuum Pump. Bracket comes with all spacers and mounting hardware. Allows mounting of alternator and vacuum pump on either side of engine. Items to be used for installation... 170-901 Series CSR Water... 710-23540 Moroso Vacuum Pump... 710-23534 Moroso Crankshaft...