Pulley Style:V-belt Groove Quantity:2 Material:Aluminum Surface Finish: Polished Brand New Aluminum Upper Water Pump (2 Groove) & Crankshaft (2 Groove) Pulley Kit. These Double Groove Pulleys Fit Small Block Chevy 283 - 350 with a Short Water Pump Package: including all items in the picture. Note: Professional Installation is Highly Recommended. Installation Instruction is NOT Included.
