50mm Cog Drive Assembly, Big Block Chevy

50mm Cog Drive Assembly - For use with low mount, dual plate Big Block Chevy systems. Includes 80 Tooth Crank Pulley, Accessory Crank Pulley, Crank Pulley Spacer, 32 Tooth Supercharger Pulley, Pulley Retainer Assembly, 1600mm Polychain GT2 Belt, and All Necessary Hardware.