Moroso 63858 Big Block & LS Chevy Short 3-Bolt Crank Mandrel Drive Kit w/Pulleys

Moroso’s Forged Steel Short Big Block Chevy & LS Chevy Crank Mandrel Drive Kit with Pulleys for Oil and Vacuum Pumps. 1″ Industry Standard Steel Mandrel offers a robust 1/8″ Standard keyway system that works with most crank mandrel pulleys. This Drive Kit is designed to work with a Moroso Dry Sump Pump, Vacuum Pump and an alternator or any combination of either.

This drive kit is also often used on Small Block Ford applications that use BBC Damper front drive pattern.

• Bolts to balancer balancer does not need to be drilled like older designs
• Pulleys are hard coat anodized and mandrel is black oxide for exceptional strength and extended service life
• Kits include one-piece, forged steel drive mandrel, 4″ V-belt pulley for alternator, 2-1 2″ V-belt pulley for vacuum pump, 1″ (16 tooth) Gilmer pulley for external oil pump, guide plates, assorted spacers, belt guides and hardware

NOTE: On LS Applications when using ARP Balancer Bolt use Moroso Spacer Part No. 63890