SBC 350 Chevy Small Block Black Aluminum Pulley Kit V-Belt Long Water Pump LWP w/ Bolts. This is 2 Groove Crankshaft Pulley, 1 Groove Water Pump Pulley and 1 Groove Alternator Pulley kits. This pulley work on SB Chevy 283, 302, 327, 305, 350 and 400 engines with “LONG” water pump. Designed for use with stock power steering and alternator brackets. 1x 1 Groove Billet Aluminum Long Water Pump Pulley (6.60 Diameter). 1x 2 Groove Billet Aluminum Long Water Pump Crank Pulley (6.60 Diameter). 1X 1 Groove Alternator Pulley. Professional Installation is Highly Recommended.