Power Steering Pulley Diameter: 5.75" 5/8" Keyed Shaft This will not work on early 265-283 with riveted on pulleys. 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.
Powered by SixBit's eCommerce Solution. +1 groove Power Steering Pulley Small Block SWP 283-350 This kit will work on all 1955-68 Small Block Chevy Motors This will not work on early 265-283 with riveted on pulleys.