Description: 100% Brand New Items, Never Used Or Installed Fits Small Block Chevy 283-350 Engine. Fits 1955-68 Short Water Pump. Pulley Material: Steel Water Pump Pulley: Pulley Style: V-Belt Pulley Design: Plain Groove Quantity: 2 Water Pump Style: Short Water Pump Shaft: 5/8" Bolt Hole Quantity: 4 Outside Diameter: 6.25" Under Drive: No Overdrive: No Nose Cover: Not Included Hardware: Not Included Crankshaft Pulley: .