2.38" 11 Rib LS9 10 Bolt Pulley

2.38" 11 Rib LS9 10 Bolt Pulley

C6 ZR1 LS9 2.35 11 Rib 10 Bolt Pulley to be used with ZR1 Supercharger snout or supercharger front cover.

10 Bolt Supercharger Pulley Choices stock balancer
2.60 inch - 19% OD - 18,300 RPM supercharger speed*
2.35 inch - 32% OD - 20,300 RPM supercharger speed*

10 Bolt Supercharger Pulley Choices overdrive balancer
2.60 inch - 36% OD - 20,800 RPM supercharger speed*
2.35 inch - 50% OD - 23,000 RPM supercharger speed*

*Measured at 6,500 RPM engine speed / Stock supercharger speed 15,400 RPM