25% Reduction Kit Long Water Pump Alum

Kit includes a double groove water pump pulley, 1-5/8" centering hole Also includes a double groove crank pulley Matched pair of heavy duty belts This requires longer 3/8" bolts to be purchased separately, Allen head type bolts recommended For Small Block Chevy V8s with '69-'86 long style water pumps with 5/8" shaft