[atijohn]

its not a chevy part. it is an ati part with a chevy pulley pattern to give the customers a better selection. you only need to run with the adapter if you use the ford pulleys. you could go with most any after market pulleys and have your equipment line up. if you're more comfortable going to your local machine shop to lose the .375, i can't believe that would cost enough to make a difference. besides the car will run better!