• Billet aluminum pulleys with black hardcoat finish to help with wear resistance maximizing performance at high race RPM’s maximizing belt contact for traction, reducing the risk of belt unseating

• 4.5" upper water pump pulley and 4.25" lower crank pulley

• All mounting hardware included

• Spare serpentine belt included (JRP6PK-695HD)

• Use with crate engine or small block Chevy equivalent

**Jones suggests using this kit for a maximum RPM range of 6000-7000 RPM**

**If your maximum RPM doesn't fall within the suggested range, please give us a call and we will help you choose the kit that best fits your application**