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  • 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 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

  • 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

  • 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
  • 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.

  • 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

  • Small Block Chevy Inboard Drive Kits, Alternator & AC
    Small Block Chevy Inboard Drive Kits, Alternator & AC
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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 and A/C kits include dual groove pulleys.

    Bracket kit works with dual quad & 3-2 low rise intakes.

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

  • 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.

  • 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 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 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.

     

     

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

    • Precision machined aluminum construction
    • Lightweight and strong
    • Single groove for V-belt
    • From balancer to outer edge of pulley is 2-3/4"
    • From outer edge to center of V-belt groove is 5/16"
    • Diameter is 6-5/8"
  • 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 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.

  • 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.

  • 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.  

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

    • Precision machined aluminum construction
    • Lightweight and strong
    • Three grooves for V-belts
    • Mounting face to first groove:  1.090"
    • First groove to second groove:  .625"
    • Second groove to third groove:  .687"
    • Overall Thickness:  2.77"
    • Diameter:  6-5/8"
  • 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.  

  • KRC KRC40400360 Adjustable Idler/Tensioner Assembly, Small Block Chevy
    KRC KRC40400360 Adjustable Idler/Tensioner Assembly, Small Block Chevy
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    KRC's adjustable idler - tensioner is used to keep proper belt tension and prevent belt slippage when using a mechanical fan. This can occur on both single drive belt and pulley systems that have a steering pump mounted of the front of an engine.

    KRC's idler tensioner is essential on dirt cars. Belt slippage can occur on cars that exceed 7,000 RPM and/or use a large or heavy fixed fan blade or a fan blade with a lot of pitch, which potentially causes overheating & pulleys to wear faster. This occurs on both single drive belt and pulley systems with a power steering pump mounted on the front of the engine. 

    Fan belts and pulleys work to slow down the fan. The belt slips because it is stretching to slow the fan. The belt heats up as the the the stretching increases. The only way to properly tension the belt is with an adjustable idler/tensioner. This keeps the engine running cooler because the belt is tighter. This will allow faster acceleration out of turns and harder braking on corners.

    • Designed for GM 602 & 604 Crate Engines
    • Use with KRC serpentine drive systems
    • Assembly contains:
      • Idler - Tensioner
      • Hardware and Instructions

     

     

  • Billet FM2122PC S/B Chevy Mid Mount Serpentine Conversion Kit-Press-On
    Billet FM2122PC S/B Chevy Mid Mount Serpentine Conversion Kit-Press-On
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                Please view the product's page for more information
            
  • KRC Small Block Chevy Aluminum Lower Pulley Spacer
    KRC Small Block Chevy Aluminum Lower Pulley Spacer
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                Billet aluminum lower crankshaft pulley spacer for Small Block Chevy engines. Choose thickness.
            
  • 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.

  • Speedway Lower Crank Pulley Spacers for Small Block Chevy
    Speedway Lower Crank Pulley Spacers for Small Block Chevy
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                Billet aluminum lower crankshaft pulley spacers for  Small Block Chevy engines. Available in 3 widths, .200", .250", and  .375" to provide precise pulley alignment for your application.
    • Billet aluminum
    • Natural finish
    • 3-bolt configuration
    • 4" O.D.
    • 0.88" I.D.
    • .200", .250", or .375" thick
    • Sold each
  • KRC KIT16390000 Denso Alt Bracket-Idler Tensioner Basic Drive Kit SBC
    KRC KIT16390000 Denso Alt Bracket-Idler Tensioner Basic Drive Kit SBC
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    KRC's idler tensioner is a neccessity on dirt cars because elt slippage can occur on cars that exceed 7,000 RPM. They are also vital if you use a large or heavy fixed fan blade or a fan blade with a lot of pitch. These can potentially causes overheating faster wear. This occurs on both single drive belt and pulley systems with a power steering pump mounted on the front of the engine.

    This happens because the fan belt and pulleys are required to slow the fan. The belt stretches so it slips while braking, inducing heat into the belt. The belt will continue to stretch as the race goes on, causing engine temperature to slowly climb. To properly tension the belt to prevent slippage is with an idler or tensioner pulley mounted on the passenger side of the engine. This helps the engine run cooler and the belt tighter, allowing faster acceleration out of turns & harder braking on corners.

    • Designed for GM 602 & 604 Crate Engines
    • Works great with mechanical fans
    • Assembly contains:
      • Idler - Tensioner
      • Alternator Bracket
      • 3.5" 3-Rib Serpentine Aluminum Pulley
      • Goodyear Gatorback Belt
      • Hardware and Instructions
  • KRC KIT16320010 SBC Serpentine Drive Kit, Head Mt Pump/Idler Tensioner
    KRC KIT16320010 SBC Serpentine Drive Kit, Head Mt Pump/Idler Tensioner
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                Please view the product's page for more information
            
  • KRC KIT16312010Basic Serpentine Drive Kit Crate S/B Chevy Head Mt Pump
    KRC KIT16312010Basic Serpentine Drive Kit Crate S/B Chevy Head Mt Pump
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                Please view the product's page for more information
            
  • KRC KIT16312110 Basic Serpentine Drive Kit-S/B Chevy Head Mt Pump/Tank
    KRC KIT16312110 Basic Serpentine Drive Kit-S/B Chevy Head Mt Pump/Tank
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                Please view the product's page for more information
            
  • KRC KRC16312115 Serpentine Drive Kit, S/B Chevy, Block Mt Pump w/ Tank
    KRC KRC16312115 Serpentine Drive Kit, S/B Chevy, Block Mt Pump w/ Tank
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                Please view the product's page for more information
            
  • 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)

  • Snow White Small Block Ford Shorty Water Pump, 3-Groove Pulley
    Snow White Small Block Ford Shorty Water Pump, 3-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
    • Aluminum 3-groove crank pulley and 2-groove water pump pulley for cars with A/C
  • Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
    Small Block Chevy Cast Alum. Long 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.

    This is a 25% reduction pulley when used with the correct upper pulley, part number 91015476.

    • 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
    • 910-15488
      • 5-7/16" O.D.

    Available for long water pumps. 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. 

     

  • Small Block Chevy Outboard Drive Kits, Alternator & A/C
    Small Block Chevy Outboard Drive Kits, Alternator & A/C
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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 a chrome A/C compressor.  

    Outboard mount for fat fendered cars.

    Alternator and A/C kits include dual groove pulleys.

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

     

  • Small Block Chevy Outboard Drive Kits, Alternator
    Small Block Chevy Outboard 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. 

    Outboard mount for fat fendered cars.

    Alternator only kits include single groove pulleys.

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

  • Gaerte Engines GEP 8001 Small Block Chevy Billet Aluminum Timing Cover
    Gaerte Engines GEP 8001 Small Block Chevy Billet Aluminum Timing Cover
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    This billet aluminum timing cover for small block Chevys is both strong and lightweight. Cover fits SBC engines 1955-84 model years. Gaerte designed this cover for use in dirt late model racing applications but can be used in other forms of racing. 

    Add an adjustable timing pointer (sold separately) and you're good to go.

  • 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
  • KRC Power Steering 77525110 CT525 GM LS Head Mounted Steering Pump Kit
    KRC Power Steering 77525110 CT525 GM LS Head Mounted Steering Pump Kit
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                Please view the product's page for more information
            
  • KRC KIT16312610 Serpentine Drive Kit-S/B Chevy, Head Mt. w/o P.S. Pump
    KRC KIT16312610 Serpentine Drive Kit-S/B Chevy, Head Mt. w/o P.S. 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 crate engine kit
    • Designed for GM 602 & 604 Crate Engines
    • Assembly contains:
      • Aluminum driver side cylinder head mounted power steering pump bracket
      • Pro series pulley kit
      • KRC high performance water pump
      • Water pump spacers
      • Hardware and detailed instructions

    Serpentine Pulley Offset (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

  • KRC KIT16312615 Serpentine Drive Kit-S/B Chevy, Block Mt. w/o P.S Pump
    KRC KIT16312615 Serpentine Drive Kit-S/B Chevy, Block Mt. w/o P.S 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 crate engine kit
    • Designed for GM 602 & 604 Crate Engines
    • Assembly contains:
      • Aluminum driver side lower block mounted power steering pump bracket
      • Pro series pulley kit
      • KRC high performance water pump
      • Water pump spacers
      • Hardware and detailed instructions

    Serpentine Pulley Offset (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.  

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