Small Block Chevy Long Water Pump Performance Ratio Serpentine Pulley Kit

6 Rib Serpentine | 6061-T6 Billet Aluminum | Under Drive

Application:

Chevy small block

7" standard rotation long water pump

Kit includes:

6311 single 6-rib crank pulley (5 3/4")

6312 single 6-rib water pump pulley (6 1/4")

208   single 6-rib alternator pulley (2 3/4")

Optional alternator fan available : 221

Optional water pump pulley cover available : 314