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Reduction Pulley Combo for Small Block Chevy Long Pump

Price:$74.99
Speedway 20% Pulley Combo for Long Pump
Price:
$74.99
KT
In Stock
Item #:
91015461
Open Kit Components
- Selection of individual components may be necessary for kit purchase.
Reduction Pulley Combo for Small Block Chevy Long Pump
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Combo includes cast aluminum double-groove aluminum water pump pulley, crank pulley, and matched pair of heavy duty belts. Slows water pump speed by 20% for increased horsepower.

For Small Block Chevy V8s with '69-'86 long style water pumps with 5/8" shaft.

Note: The lower crank pulleys in our combo kits are manufactured thicker than normal stock pulleys.  This requires longer 3/8" bolts to be purchased separately.  Allen head type bolts recommended.

Water Pump ID Chart (GIF)

  • Upper Pulley Grooves:  Two
  • Lower Pulley Grooves:  Two 
  • Upper Pulley Diameter:  6-5/8" O.D.
  • Lower Pulley Diameter:  5-7/16" O.D.
  • Upper Pulley Snout Hole:  5/8" O.D. (can be drilled out to 3/4")
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