If you want to run a mechanical fuel pump with a small block Ford Yates style belt drive, this is a critical item. This is the fuel pump drive eccentric. It uses a roller bearing to reduce friction on the pump to save horsepower. This is a direct bolt-on part for your belt drive. This part is used, but in top condition. We also carry the mounting bracket for the pump as well as many spare parts for small block Ford belt drive systems. 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.