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  • Speedway 30% Reduction Pulley Combo for S/B Chevy Short Pump
    Speedway 30% Reduction Pulley Combo for S/B 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 30% for increased horsepower.

    Fits Small Block Chevy V8 with '55-'68 short-style water pump with 5/8" shaft.

    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.

  • 1955-68 Small Block Chevy Single Groove Upper Pulley, Short Water Pump
    1955-68 Small Block Chevy Single Groove Upper Pulley, Short Water Pump
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    These upper pulleys for 1955-68 short water pumps feature a single groove with a beautiful chrome finish.  They will work with 283-350 V8 small block Chevy engines.  Sitting flat on the workbench, the pulley is 2-3/4" high in the center at the water pump.

    • Upper pulley
    • 1955-68 283-350 V8 small block Chevy engine
    • Short water pumps
    • Single groove  
    • 7-1/8" Diameter
    • Chrome plated finish

    Note:  These upper pulleys will not work with our lower pulley (91015424).  Use our lower pulley (91015422) to correspond for proper alignment with these upper pulleys.

    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.

  • Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump
    Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump
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    Kit includes a cast aluminum double groove water pump pulley and double groove crank pulley, and a matched pair of heavy duty belts. Has a 1:1 water pump/crankshaft speed ratio.

    Fits Small Block Chevy V8 with '55-'68 short-style water pump with either a 5/8" or 3/4" 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

  • 1955-68 Small Block Chevy Single Groove Lower Pulley, Short Water Pump
    1955-68 Small Block Chevy Single Groove Lower Pulley, Short Water Pump
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    These lower pulleys for 1955-68 short water pumps feature a single groove with a beautiful chrome finish.  They will work with 283-350 V8 small block Chevy engines. 

    • Lower pulley
    • 1955-68 283-350 V8 small block Chevy engine
    • Short water pumps
    • Single groove  
    • 6-3/4" Diameter
    • Chrome plated finish

    Note: Use our upper pulley (91015421) to correspond for proper alignment with these lower pulleys.

    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.

     

  • KRC KIT16312015 Basic Serpentine Drive Kit-Crate Chevy Block Mt. Pump
    KRC KIT16312015 Basic Serpentine Drive Kit-Crate Chevy Block Mt. Pump
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    KRC's basic kits are the perfect starting point for your GM 602 & 604 Crate Engines. Select the kit with the options that suit your application, then choose the appropriate accessory to complete your kit.

    • Complete basic kit
    • GM 602 & 604 Crate Engines
    • Assembly contains:
      • 7.2cc aluminum power steering pump
      • 4.2" aluminum power steering pulley
      • Aluminum driver side lower block mounted power steering pump bracket
      • Pro series pulley kit
      • KRC high performance water pump
      • Water pump spacers
      • Goodyear Gatorback belt
      • Hardware and detailed instructions

    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.

    Cast Iron Pump Tech (PDF)

    Cast Iron Pump Installation Instructions (PDF)

    New Pump Tips (PDF)

    Serpentine Pulley Offset (PDF)

  • Billet FM2121PC SBC Mid Mount Serpentine Conversion Kit, Keyway Shaft
    Billet FM2121PC SBC Mid Mount Serpentine Conversion Kit, Keyway Shaft
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                Please view the product's page for more information
            
  • Small Block Chevy Aluminum Double Upper Pulley, Short Pump
    Small Block Chevy Aluminum Double Upper Pulley, Short Pump
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                Cast aluminum double groove V-belt pulley for '55-'68 Small Block Chevy short style water pumps. Fits over 5/8" water pump snout, but can be drilled out to 3/4" if needed. 
    • Precision machined aluminum construction
    • Lightweight and strong
    • Double grooves for two V-belts

    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

  • Small Block Chevy Aluminum Triple Lower Pulley, Short Pump
    Small Block Chevy Aluminum Triple Lower Pulley, Short Pump
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    Cast aluminum 3-groove V-belt crankshaft pulley for use with '55-'68 Small Block Chevy short style water pumps.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Three grooves for 3 V-belts

    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

  • Speedway Reduction Pulley Combo for Small Block Chevy Short Pump
    Speedway Reduction Pulley Combo for Small Block Chevy Short Pump
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                Please view the product's page for more information
            
  • Single Groove Power Steering Pump Pulley, Billet Aluminum, Short Pump
    Single Groove Power Steering Pump Pulley, Billet Aluminum, Short Pump
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    Power steering pump pulley for use with short-style (1955-1968) water pumps. Available in plain billet only.

    • For use with our 91032908 power steering pump 
    • Use with 2-groove lower crank pulley when using P/S bracket 91667920
    • Pulley runs off outer groove of lower crank pulley
    • 5/8" shaft hole w/ key way
    • Chamfered on the back side to allow clearance on pumps
  • Reduction Pulley Combo for Small Block Chevy Long Pump
    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.

    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

  • Small Block Chevy Billet Aluminum Water Pump Pulley, 6-7/8 Inch O.D.
    Small Block Chevy Billet Aluminum Water Pump Pulley, 6-7/8 Inch O.D.
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    Speedway Billet Aluminum double groove pulleys for small block Chevy feature a 30% reduction. Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

    • High strength billet aluminum construction
    • Superior belt retention with extra-deep grooves
    • 30% reduction slows accessories down for less drag
    • Adds top-end horsepower
    • Reduces water pump impeller speed below cavitation threshold
    • Improved high-RPM cooling capabilities

    Fits short style pumps ('55-'68) or long style pumps ('69-'86). Fits a 5/8" shaft.

    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.

  • Small Block Chevy Aluminum Single Upper Pulley, Short Pump
    Small Block Chevy Aluminum Single Upper Pulley, Short Pump
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    Cast aluminum single groove V-belt upper pulley for '55-'68 Small Block Chevy short style water pumps. Fits over 5/8" water pump snout, but can be drilled out to 3/4" if needed.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Single groove for V-belt
    • From inside at fan hub to back side of pulley is 2-3/4"
    • From back edge of pulley to center of V-belt groove is 5/16"
    • Fits over a 5/8" water pump shaft (can be drilled to 3/4" if needed)
    • Diameter is 6-5/8"

    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.

  • Small Block Chevy Aluminum Double Lower Pulley, Short Pump
    Small Block Chevy Aluminum Double Lower Pulley, Short Pump
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    Cast aluminum double groove V-belt crankshaft pulley for use with '55-'68 Small Block Chevy short style water pumps.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Double grooves for two V-belts

    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.

  • Small Block Chevy Cast Alum. Short Pump Double Groove Lower Pulley
    Small Block Chevy Cast Alum. Short Pump Double Groove Lower Pulley
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    Speedway Cast Aluminum double groove pulleys for Small Block Chevy feature a 20% reduction. Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

    • Machined from lightweight cast aluminum
    • Superior belt retention with extra-deep grooves
    • 20% reduction slows accessories down for less drag
    • Adds top-end horsepower
    • Reduces water pump impeller speed below cavitation threshold
    • Improved high-RPM cooling capabilities
    • 5-7/16" diameter

    Available for Short style pumps ('55-'68). Fits a 5/8" shaft.

    Note: The lower crank pulleys 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.  

  • Small Block Chevy Aluminum Single Lower Pulley, Short Pump
    Small Block Chevy Aluminum Single Lower Pulley, Short Pump
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    Cast aluminum single groove V-belt crankshaft pulley for use with '55-'68 Small Block Chevy short style water pumps.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Single groove for V-belt
    • This pulley has "0" offset and is flat against balancer
    • From edge of pulley to center of V-belt groove is 5/16"
    • Diameter is 6-5/8"

    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.

     

     

  • Matched Belts for Cast Aluminum Pulleys 910-15460
    Matched Belts for Cast Aluminum Pulleys 910-15460
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    Replacement pairs of matched belts for Speedway small block Chevy cast aluminum pulleys for short water pump.

    Water Pump ID Chart (GIF)

  • Small Block Chevy Power Steering Pump Bracket
    Small Block Chevy Power Steering Pump Bracket
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    This power steering pump bracket mounts a stock-style GM pump to a S/B Chevy block. Must be used with a short style water pump. Mounts on the lower left side. Bracket is zinc plated with threaded shaft. Designed to work with a '70-'82 GM pump that has a threaded pulley shaft, not a press-on style.

    Works with bolt-on or press-on pulleys with a mount spacing of 3.75". Due to the variety of pulley configurations, it is likely that you will have to space the pump/bracket for belt alignment.

    Note: This will NOT work when used on early 1970's Chevelle/Camaro chassis with a steering box.

  • Garage Sale -  Small Block Chevy Cast Alum. Short Pump Double Gro
    Garage Sale - Small Block Chevy Cast Alum. Short Pump Double Gro
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    Speedway Cast Aluminum double groove pulleys for Small Block Chevy feature a 20% reduction. Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

    • Machined from lightweight cast aluminum
    • Superior belt retention with extra-deep grooves
    • 20% reduction slows accessories down for less drag
    • Adds top-end horsepower
    • Reduces water pump impeller speed below cavitation threshold
    • Improved high-RPM cooling capabilities
    • 910-15482
      • 6-5/8" O.D.

    Available for Short style pumps ('55-'68). Fits a 5/8" shaft.

    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.  

  • Black Upper Double Groove Water Pump Pulley, Chevy V8
    Black Upper Double Groove Water Pump Pulley, Chevy V8
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                Finding stock brackets and v-belt pulleys in  serviceable condition has gotten very difficult over the years.  That's  why we're working to bring you brand new reproductions in a paintable  satin black finish.  No more trying to make chrome aftermarket pulleys  look at home under the hood of your restoration project!
    • Chevy V8 Dual Groove Short Water Pump Pulley
    • Satin black finish
    • Replaces GM # 3995642
    • 6" diameter
  • Small Block Chevy Short Water Pump HTD Drive Kit
    Small Block Chevy Short Water Pump HTD Drive Kit
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    • Both upper and lower pulleys included
    • Upper 35 tooth pulley, 25 tooth lower pulley and 23.6" HTD belt
    • 43% reduction to eliminate overheating and belt slippage
    • Adjustable water pump 910-15582 is recommended for use with this kit

    Note: This  kit will work with most "short" water pumps, but hub heights do vary slightly depending on manufacturer. Some modification of the mounting holes may be required. This kit WILL NOT work with "long" water pumps as the crankshaft to hub center height is 5/16" greater than that of a "short" pump.

    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.  

  • Snow White Small Block Ford Shorty Water Pump, 2-Groove Pulley
    Snow White Small Block Ford Shorty Water Pump, 2-Groove Pulley
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    • Positions lower hose (inlet) on the passenger side (1-3/4" diameter)
    • Allows use of a Chevy style radiator
    • 2" shorter than stock Ford pump 
    • Weighs 13.75 lbs. less than stock cast iron pump set-up
    • Fits 1963-1988 Ford 302 and 351 (Cleveland or Windsor)
    • Includes standard aluminum water pump
    • Aluminum adapter included
    • Machined aluminum 2-groove crank pulley and 1-groove water pump pulley
  • 1955-68 Small Block Chevy Double Groove Lower Pulley, Short Water Pump
    1955-68 Small Block Chevy Double Groove Lower Pulley, Short Water Pump
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    These lower pulleys for 1955-68 short water pumps feature a double groove with a beautiful chrome finish.  They will work with 283-350 V8 small block Chevy engines.

    • Lower pulley
    • 1955-68 283-350 V8 small block Chevy engine
    • Short water pumps
    • Double groove  
    • 7-3/8" Diameter
    • Chrome plated finish

    Note:  These lower pulleys will not work with our upper pulley (91015421).  Use our upper pulley (91015423) to correspond for proper alignment with these lower pulleys.


     

  • Small Block Chevy Short Water Pump Gilmer Drive Kit
    Small Block Chevy Short Water Pump Gilmer Drive Kit
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    • Both upper and lower pulleys included
    • Upper 28 tooth pulley, 16 tooth lower pulley and 22-1/2" Gilmer belt
    • 43% reduction to eliminate overheating and belt slippage
    • Adjustable water pump 910-15582 is recommended for use with this kit

    Note: This  kit will work with most "short" water pumps, but hub heights do vary slightly depending on manufacturer. Some modification of the mounting holes may be required. This kit WILL NOT work with "long" water pumps as the crankshaft to hub center height is 5/16" greater than that of a "short" pump.

    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.  

  • Speedway 1:1 Pulley Combo for Small Block Chevy Long Water Pump
    Speedway 1:1 Pulley Combo for Small Block Chevy Long Water Pump
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    Kit includes a cast aluminum double groove water pump pulley and double groove crank pulley, and a matched pair of heavy duty belts. Has a 1:1 water pump/crankshaft speed ratio.

    Fits Small Block Chevy V8 with '69-'86 long-style water pump.

    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

     

  • Universal Water Pump Shim Kit
    Universal Water Pump Shim Kit
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    Water pump pulley shim kit provides proper drive belt alignment with pulleys.  Kit contains two aluminum 1/16" spacer and one 1/8" spacer.

    Learn more about using different water pump accessories to best fit your application by reading our tech article.  SBC - Short vs Long Water Pump

  • 1955-1968 Chevy Short Pump Double Groove Upper Pulley
    1955-1968 Chevy Short Pump Double Groove Upper Pulley
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    Chrome upper Small Block Chevy pulley for 1955-1968 short pumps.

    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.  

  • 1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump
    1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump
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    Cast aluminum double groove V-belt crankshaft pulley for use with '69-'85 Small Block Chevy long style water pumps.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Two grooves for V-belts

    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

  • 1969-1985 Small Block Chevy Aluminum Single Upper Pulley, Long Pump
    1969-1985 Small Block Chevy Aluminum Single Upper Pulley, Long Pump
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    Cast aluminum single groove V-belt upper pulley for '69-'85 Small Block Chevy long style water pumps. Fits over 5/8" water pump snout, but can be drilled out to 3/4" if needed.

    • Precision machined aluminum construction
    • Lightweight and strong
    • Single groove for V-belt
    • From inside of pulley at fan hub to rear edge of pulley is 2"
    • From rear edge of pulley to center of V-belt groove is 5/16"
    • Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
    • Diameter is 6-5/8"

    Note:  When using in conjunction with an electric fan assembly, be sure to consider the pulley installation screw kit # 910-15440 shown below.

    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

  • Small Block Chevy Alum. Long Pump Double Groove Upper Pulley
    Small Block Chevy Alum. Long Pump Double Groove Upper Pulley
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                Cast aluminum double groove V-belt upper pulley for '69-'85 Small  Block Chevy long style water pumps. Fits over 5/8" water pump snout, but can be  drilled out to 3/4" if needed. 
    • Precision machined aluminum construction
    • Lightweight and strong
    • Two grooves for V-belts
    • Hub surface to first groove center: 2.415"
    • Center-to-center of grooves:  11/16"
    • Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
    • Diameter:  6-5/8"

    It may be necessary to shim either or both of the pulleys to achieve perfect belt alignment. There are variances between manufacturers of both water pumps and pulleys.

    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.

  • Black Single Groove Power Steering Pulley, Chevy
    Black Single Groove Power Steering Pulley, Chevy
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                Finding stock brackets and v-belt pulleys in  serviceable condition has gotten very difficult over the years.  That's  why we're working to bring you brand new reproductions in a paintable  satin black finish.  No more trying to make chrome aftermarket pulleys  look at home under the hood of your restoration project!
    • Chevy Single Groove Power Steer Pump Pulley
    • Stock"Shallow" variety
    • Keyway Type
    • Satin black finish
    • For use with short water pumps
  • AFCO Cast Pulley Combos for Small Block Chevy Short Pumps
    AFCO Cast Pulley Combos for Small Block Chevy Short Pumps
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    • Double-groove water pump pulley
    • Double-groove crank pulley
    • Matched pair of heavy duty belts
    • 20% reduction

    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

  • Billet Specialties 13220 Tru Trac Serpentine Systems - Small Block Chevy
    Billet Specialties 13220 Tru Trac Serpentine Systems - Small Block Chevy
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    Billet Specialties Tru Trac serpentine systems for Small Block Chevy come complete with all attaching hardware and a comprehensive installation manual.

    • Polished 105 amp Powermaster 1-wire alternator
    • Cast finish Edelbrock reverse rotation water pump
    • Polished Sanden SD-7 compressor
    • Cast finish Maval power steering pump w/ AN fittings
    • All pulleys and brackets completely polished
    • Polished ARP 12-point stainless steel hardware
    • Goodyear Gatorback 6-rib serpentine belt

    Note: Requires the use of a remote power steering fluid reservoir. Vehicles that use front style motor mounts must be converted to side motor mounts when using the Tru Trac system.

    Small Block Chevy Serpentine System Installation Instructions (PDF)

    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.  

  • Black Double Groove Power Steering Pulley, Chevy
    Black Double Groove Power Steering Pulley, Chevy
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                Finding stock brackets and v-belt pulleys in  serviceable condition has gotten very difficult over the years.  That's  why we're working to bring you brand new reproductions in a paintable  satin black finish.  No more trying to make chrome aftermarket pulleys  look at home under the hood of your restoration project!
    • Chevy V8 2-Groove Power Steering Pump Pulley
    • "Keyway" Type
    • Satin black finish
    • For use with short water pumps
  • Small Block Chevy Inboard Drive Kits, Alternator
    Small Block Chevy Inboard Drive Kits, Alternator
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    We all know what a pain it is to come up with a pulley, bracket, and belt combination to work on your small block Chevy engine. We have pre-engineered our package to include the nuts, bolts, polished billet aluminum brackets and belts to make this a simple installation. Each kit also includes a new short style aluminum water pump, aluminum pulleys, one wire chrome alternator and if chosen, a chrome A/C compressor. 

    Inboard (high) mount brackets for early cars.

    Alternator only kits include single groove pulleys.

    Note: S/B Chevy, short style water pump only.

  • 1969-85 Chevy Long Water Pump Nose Cover
    1969-85 Chevy Long Water Pump Nose Cover
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    Billet aluminum nose cover for 1969-85 small block Chevy long water pumps.

    Learn more about using different water pump accessories to best fit your application by reading our tech article.  SBC - Short vs Long Water Pump.   

  • 1969-85 Small Block Chevy Single Groove Upper Pulley, Long Water Pump
    1969-85 Small Block Chevy Single Groove Upper Pulley, Long Water Pump
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    These upper pulleys for 1969-85 long water pumps feature a single groove with a beautiful chrome finish.  They will work with 283-350 V8 small block Chevy engines.

    • Upper pulley
    • 1969-85 283-350 V8 small block Chevy engine
    • Long water pumps
    • Single groove  
    • 6-1/4" Diameter
    • Chrome plated finish

    Note:  Use our lower pulley (91015426) to correspond for proper alignment with these upper pulleys.

    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.  

     

  • KRC KIT16320015 Serpentine Drive Kit-GM-Block Mt Pump/Idler Tensioner
    KRC KIT16320015 Serpentine Drive Kit-GM-Block Mt Pump/Idler Tensioner
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                Please view the product's page for more information
            
  • 1969-85 Small Block Chevy Double Groove Upper Pulley, Long Water Pump
    1969-85 Small Block Chevy Double Groove Upper Pulley, Long Water Pump
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    These upper pulleys for 1969-85 long water pumps feature a double groove with a beautiful chrome finish.  They will work with 283-350 V8 small block Chevy engines.

    • Upper pulley
    • 1969-85 283-350 V8 small block Chevy engine
    • Long water pumps
    • Double groove  
    • 6-1/4" Diameter
    • Chrome plated finish

    Note:  Use our lower pulley (91015428) to correspond for proper alignment with these upper pulleys.

    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.  

     

  • Moroso 64060 Chevy Short Pump Double Groove Crank Pulley
    Moroso 64060 Chevy Short Pump Double Groove Crank Pulley
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                S/B Chevy, double groove cast aluminum lower pulley, 25% reduction. Available for short water pumps. 5/8" shaft.
    • Precision machined from high grade, lightweight aluminum castings
    • Extra-deep belt grooves provide added belt retention during rapid changes in engine RPM
    • Small pulley diameter slows fan, water pump, and alternator speed to reduce horsepower-robbing drag
    • High RPM water pump operation is improved, reducing impeller speed below cavitation threshold
    • 5-3/8" diameter
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