Small Block Chevy LWP Aluminium 1/2/3 Power Steering Water Pump Crankshaft Pulley Kit with bolts. This pulley work on all Small Block Chevy Motors 283 327 350 engines with a "LONG" water pump. This Keyway Power Steering Pulley fits all GM key-way power steering units through 1984 with a 5/8" Shaft.