• 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
• 5" upper water pump pulley and 4.25" lower crank pulley
• Features a lower pulley with a reversible registering ring making it compatible with small block Chevy and big block Chevy crank snouts with big turnover nut
• All mounting hardware included
• Spare serpentine belt included (JRP6PK-695HD)
**Jones suggests using this kit for a maximum RPM range of 7800-9200 RPM**
