If you need a replacement belt drive cam pulley for your small block Ford Yates style belt drive system, this is a great deal. This is a slightly used upper pulley in top condition from Robert Yates Racing. This is a great way to save a ton of money on a very expensive part. This upper pulley cost well over $150 each to buy new. Buy one here and save a bunch of cash. This part has been inspected for wear and is in outstanding condition. Great for a backup or for reconditioning your belt drive system. This part is designed to work on small block Ford engines including 289, 302, 351W and 351SVO racing blocks. You will not find nicer belt drive system parts on the market. These are the parts trusted by Robert Yates Racing’s NASCAR team. No one else makes a belt drive used by a Ford NASCAR team today