Description: This is a Brand New Aluminum Upper Water Pump pulley. This is a Double groove pulley designed for your Small Block Chevy 283 - 350 with a Long Water Pump. This has a 6 9/16" Diameter and 5/8" Mounting bolt Cirlce. Constructed of thick gauge aluminum and with a high quality Satin Aluminum finish, this kit would be great addition to your project.
To determine if your water pump is short or long. If your alternator is originally on the driver's side then it is a short water pump. If your alternator is orginally on the passenger's side then it is a long waterpump. If you can fit your hand between the waterpump and the timing chain cover then you have a long waterpump. Note: Professional Installation is Highly Recommended.
