Fitment: Work on all Small Block Chevy Motors 283 327 350 engines with a "LONG" water pump Descripition: 100% Brand new,never been used Material: Aluminum Water Pump Pulley: Belt Type: V-Belt Double Groove Pulley Diameter is 6 9/16" Pulley is 3" Tall Bolt Pattern is 2 1/8" Center hole is 5/8" Crankshaft Pulley: Belt Type: V-Belt 3 Grooves Pulley Diameter is 6 9/16" Pulley is 2 7/8" Tall Bolt Pattern is 2 3/4" Center hole is 1-1/8" .
