Speedway Reduction Pulley Combo for Small Block Chevy Short Pump
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Kit includes a cast aluminum double groove cast aluminum water pump pulley, crank pulley, and a matched pair of heavy duty belts. Slows water pump speed by 20% for increased horsepower.
- 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")
Fits Small Block Chevy V8 with '55-'68 short-style water pump 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.
Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump.
What's In The KitEach kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
Small Block Chevy Cast Alum. Short Pump Double Groove PulleyPart # 91015482Qty x 1
Small Block Chevy Cast Alum. Short Pump Double Groove Lower PulleyPart # 91015484Qty x 1
Matched Belts for Cast Aluminum Pulleys 910-15460Part # 91015401Qty x 1
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