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  • 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

     

     

  • Holley 20-132 LS Accessory Drive Bracket-ALT, P/S, A/C
    Holley 20-132 LS Accessory Drive Bracket-ALT, P/S, A/C
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                Please view the product's page for more information
            
  • 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)

  • 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
  • Holley 21-3 LS Acc Drive Bracket Install. Kit, Long, Long Style Pump
    Holley 21-3 LS Acc Drive Bracket Install. Kit, Long, Long Style Pump
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                Please view the product's page for more information
            
  • 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.

  • Holley 20-131 R4 Compressor LS Accessory Drive AC, PS, Alt Bracket Kit
    Holley 20-131 R4 Compressor LS Accessory Drive AC, PS, Alt Bracket Kit
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    These accessory drive brackets from Holley are great when swapping a GM LS engine into a muscle car, truck, hot rod or other vehicle. These brackets were designed to deliver a factory style appearance, correct belt alignment, and factory stability.  Holley's kits supply the required brackets and hardware needed for installation.

    To determine correct application, these three easy steps will help get you going:

    • Step one is to determine your belt alignment based on your crank Pulley position on the engine you have.
    • Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both).
    • Step three is to see which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part # 425211, 425212, or 425213) is REQUIRED for most applications.

    Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.

    Fitment and Required Components Guide for 20-131 Bracket Kit (PDF)  

    Assembly Instructions for Holley 20-131 Accessory Drive Kit (PDF)   

  • Holley 20-135 Drivers Side P/S & Alternator LS Acc Drive Bracket Kit
    Holley 20-135 Drivers Side P/S & Alternator LS Acc Drive Bracket Kit
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    These accessory drive brackets from Holley are great when swapping a GM LS engine into a muscle car, truck, hot rod or other vehicle. These brackets were designed to deliver a factory style appearance, correct belt alignment, and factory stability. Holley's kits supply the required brackets and hardware needed for installation.

    To determine correct application, these three easy steps will help get you going:

    • Step one is to determine your belt alignment based on your crank Pulley position on the engine you have.
    • Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both).
    • Step three is to see which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part # 425211, 425212, or 425213) is REQUIRED for most applications.

    Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.

    Fitment and Required Components Guide for 20-135 Bracket Kit (PDF)

    Assembly Instructions for Holley 20-135 Accessory Drive Kit (PDF)

     

  • Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC
    Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC
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    These accessory drive brackets from Holley are great when swapping a GM LS engine into a muscle car, truck, hot rod or other vehicle. These brackets were designed to deliver a factory style appearance, correct belt alignment, and factory stability.  Holley's kits supply the required brackets and hardware needed for installation.

    To determine correct application, these three easy steps will help get you going:

    • Step one is to determine your belt alignment based on your crank Pulley position on the engine you have.
    • Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both).
    • Step three is to see which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part # 425211, 425212, or 425213) is REQUIRED for most applications.

    Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.

    Fitment and Required Components Guide for 20-133 Bracket Kit (PDF)  

    Assembly Instructions for Holley 20-133 Accessory Drive Kit (PDF)   

  • Powermaster 722 High Mount Alternator Bracket, Small Block Chevy
    Powermaster 722 High Mount Alternator Bracket, Small Block Chevy
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    This bracket mounts the alternator to the passenger side cylinder head area.  This setup does not interfere with other belt drive systems already in use. This is a replacement bracket for kit part #91068122.

    • Mounts alternator to the passenger side cylinder head
    • Does not interfere with other belt drive systems
    • Replacement bracket for #91068122
    • Aluminum
    • Hardware included
  • Holley 20-134 LS Accessory Drive Bracket, Passenger Side A/C
    Holley 20-134 LS Accessory Drive Bracket, Passenger Side A/C
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                Please view the product's page for more information
            
  • 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
            
  • Holley 21-2 LS Accessory Drive Bracket Installation Kit, Middle Align
    Holley 21-2 LS Accessory Drive Bracket Installation Kit, Middle Align
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                Please view the product's page for more information
            
  • Powermaster 801 High Mount Alternator Bracket, Small Block Chevy
    Powermaster 801 High Mount Alternator Bracket, Small Block Chevy
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    This bracket will attach to either side of the motor via the two bolts attaching the water pump. In most cases, this drive system will not interfere with any existing setup. This is a replacement bracket for kit #91068120.

    • Mounts to either side of the motor via the two bolts attaching the water pump
    • Does not interfere with existing belt drive systems
    • Replacement bracket for #91068120
    • Aluminum
    • Hardware included

     

  • 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.

  • Peterson Fluid Systems 05-0706 2.4 In Aluminum Drive Mandrel-S/B Chevy
    Peterson Fluid Systems 05-0706 2.4 In Aluminum Drive Mandrel-S/B Chevy
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                These aluminum drive mandrels for small block Chevys work with our belt drive systems and are available in various lengths. Length is measured as the working length where the pulleys and spacers are positive.
            
  • KRC Power Steering 20102000 Drive Kit
    KRC Power Steering 20102000 Drive Kit
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                The KRC Drive Kit works off the water pump pulley to reduce power steering pump speed by 42%.  The kit comes with the necessary pulley, belt, bolts, and spacers.  S/B Chevy.
            
  • 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.

  • Holley 21-1 LS Acc. Drive Bracket Installation Kit, Standard Alignment
    Holley 21-1 LS Acc. Drive Bracket Installation Kit, Standard Alignment
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                Please view the product's page for more information
            
  • Aluminum Drive Mandrel, Small Block Chevy, 3.250 Inch
    Aluminum Drive Mandrel, Small Block Chevy, 3.250 Inch
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                These aluminum drive mandrels for small block Chevys work with our belt drive systems and are available in various lengths. Length is measured as the working length where the pulleys and spacers are positive.
            
  • 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

  • Barnes Systems 9017-3B SBC 3 Stage Dry Sump Pump
    Barnes Systems 9017-3B SBC 3 Stage Dry Sump Pump
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                Barnes belt driven pumps are built using only the finest materials and assembled to  exacting tolerances. Unique design makes these pumps the smoothest and  most efficient pumps in the industry. Billet aluminum bodies, large  O.D. spur gears and ball bearings make for a winning combination.

    Fuel pump drive kit allows a Hilborn Waterman, etc. fuel pump to drive off the back of the oil pump.
  • 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
            
  • Powermaster 8-800 Small Block Chevy 50 Amp Mini Alternator Kit w/V-Belt
    Powermaster 8-800 Small Block Chevy 50 Amp Mini Alternator Kit w/V-Belt
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    Powermaster provides all the electrical punch you need, while saving weight and space. One-wire unit for small block Chevys using short water pumps. Mounts on either side of engine. Cranks out 14.7 volts and 53 amps. Kit includes mini alternator, brackets, bolts, spacers, drive pulley and belt.

    • True 1-wire hookup with set voltage of 14.7
    • High output to weight ratio
    • Low drag, high speed bearings
    • Black heat dispersant coating

     

    Small Block Chevy Mini Alternator Dimensions (Link)

  • 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.  

  • 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.
  • Powermaster 8-721 Small Block Chevy 75 Amp Mini Alternator w/V-Belt Kit
    Powermaster 8-721 Small Block Chevy 75 Amp Mini Alternator w/V-Belt Kit
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    Powermaster provides all the electrical punch you need, while saving weight and space with these racing alternator kits. One-wire unit for small block Chevy using short pump only. Mounts on either side of engine. Cranks out 14.7 volts and 75 amps. Kit includes mini alternator, brackets, bolts, spacers, drive pulley and belt.

    • True 1-wire hookup with set voltage of 14.7
    • High output to weight ratio
    • Excellent idle output
    • Gold battery post
    • Operating Range: -40°C to 150°C
    • Max RPM: 18,000
    • Weight: 8.885 lbs.


  • 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.  

  • Powermaster 8-722 Small Block Chevy 75 Amp Mini Alternator w/Serp-Belt Kit
    Powermaster 8-722 Small Block Chevy 75 Amp Mini Alternator w/Serp-Belt Kit
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    Powermaster provides all the electrical punch you need, while saving weight and space with these racing alternator kits. One-wire unit for small block Chevy using short pump only. Mounts on either side of engine. Cranks out 14.7 volts and 75 amps. Kit includes mini alternator, brackets, bolts, spacers, drive pulley and belt.

    • True 1-wire hookup with set voltage of 14.7
    • High output to weight ratio
    • Excellent idle output
    • Gold battery post
    • Operating Range: -40°C to 150°C
    • Max RPM: 18,000
    • Weight: 8.885 lbs.

    NOTE:  Mini alternators are NOT IMCA approved for Hobby Stock or Sport Mod Divisions.

  • Powermaster 8-801 Small Block Chevy 50 Amp Mini Alternator Kit w/Serp-Belt
    Powermaster 8-801 Small Block Chevy 50 Amp Mini Alternator Kit w/Serp-Belt
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    Powermaster provides all the electrical punch you need, while saving weight and space. One-wire unit for small block Chevys using short water pumps. Mounts on either side of engine. Cranks out 14.7 volts and 53 amps. Kit includes mini alternator, brackets, bolts, spacers, drive pulley and belt.

    • True 1-wire hookup with set voltage of 14.7
    • High output to weight ratio
    • Low drag, high speed bearings
    • Black heat dispersant coating

    NOTE: Mini alternators are NOT IMCA approved for Hobby Stock or Sport Mod Divisions.

    Small Block Chevy Mini Alternator Dimensions (Link)

  • Right Hand Drive Kit for KSE Tandem Pump
    Right Hand Drive Kit for KSE Tandem Pump
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    Passenger side (RH) drive kit for KSE Tandem Power Steering & Fuel pumps. Pump mounts off water pump on S/B Chevy. Kit includes the mount bracket, two pulleys, and an HTD belt.

    • 37-tooth pulley
    • 28-tooth pulley
    • 720mm (28.3") HTD belt 
    913-15926 Instructions (pdf)
  • Billet FM2222PC B/B Chevy Mid Mount Serpentine Conversion Kit Press-On
    Billet FM2222PC B/B Chevy Mid Mount Serpentine Conversion Kit Press-On
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                Please view the product's page for more information
            
  • Garage Sale - Powermaster 8-721 Small Block Chevy 75 Amp Mini Alternator w/V-Belt Kit
    New
    Garage Sale - Powermaster 8-721 Small Block Chevy 75 Amp Mini Alternator w/V-Belt Kit
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                Please view the product's page for more information
            
  • 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"
  • 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.

     

     

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