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  • Scat 935050L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 5.7 Rod
    Scat 935050L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 5.7 Rod
    x
                

    Scat's hi-tech, fatigue resistant 9000 material cast steel cranks have near forged steel endurance at a value price! A perfect way to increase cubic inches on mild to moderate street or race engines.

    • For 1-piece rear main seal blocks
    • Aero-wing counterweights increase horsepower by reducing windage
    • Straight shot oil holes
    • Lightening holes in all rod throws
    • Precision ground and micro polished
  • Scat 935060L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 6.0 Rod
    Scat 935060L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 6.0 Rod
    x
                

    Scat's hi-tech, fatigue resistant 9000 material cast steel cranks have near forged steel endurance at a value price! A perfect way to increase cubic inches on mild to moderate street or race engines.

    • For 1-piece rear main seal blocks
    • Aero-wing counterweights increase horsepower by reducing windage
    • Straight shot oil holes
    • Lightening holes in all rod throws
    • Precision ground and micro polished
  • Scat 9-10442 Chevy 350 Crankshaft, Cast Steel
    Scat 9-10442 Chevy 350 Crankshaft, Cast Steel
    x
                

    Scat's hi-tech, fatigue resistant 80-60-06 cast steel cranks have near forged steel endurance at a value price! Designed to replace stock cranks that have seen better days. Perfect for stock or mildly built engines.

    • For 2-piece rear main blocks
    • Precision ground and micro polished
    • Internally Balance
    • IMCA southern sport mod legal (Drilled only on the first rod throw)
    • Angle oil shot holes 
  • Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    x
                

    These high-tech fatigue resistant 80-60-06 cast steel one-piece rear main crankshafts feature near forged strength with cast economy. Designed to replace stock cranks that have seen better days. For stock or mildly built engines.

    • For 1-piece rear main blocks 
    • Precision ground and micro polished
    • Internally balanced
  • Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
    Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
    x
                

    Scat's hi-tech, fatigue resistant 9000 material cast steel cranks have near forged steel endurance at a value price! A perfect way to increase cubic inches on mild to moderate street or race engines.

    • For 2-piece rear main blocks
    • Aero-wing counterweights increase horsepower by reducing windage
    • Straight shot oil holes
    • Lightening holes in all rod throws
    • Precision ground and micro polished
    • Externally balanced
  • Scat 940050 400 Chevy Cast Steel Crankshaft
    Scat 940050 400 Chevy Cast Steel Crankshaft
    x
                

    Scat's hi-tech, fatigue resistant 9000 material cast steel cranks have near forged steel endurance at a value price! A perfect way to increase cubic inches on mild to moderate street or race engines.

    • For 2-piece rear main blocks
    • Aero-wing counterweights increase horsepower by reducing windage
    • Straight shot oil holes
    • Lightening holes in all rod throws
    • Precision ground and micro polished
    • Externally balanced
  • Scat 935056 383 Chevy Cast Steel Crankshaft, Internal Balance
    Scat 935056 383 Chevy Cast Steel Crankshaft, Internal Balance
    x
                

    Scat's hi-tech, fatigue resistant 9000 material cast steel cranks have near forged steel endurance at a value price! A perfect way to increase cubic inches on mild to moderate street or race engines.

    • For 2-piece rear main blocks
    • Aero-wing counterweights increase horsepower by reducing windage
    • Straight shot oil holes
    • Lightening holes in all rod throws
    • Precision ground and micro polished
    • Internally balanced
  • Scat 435010 Chevy 350 Crankshaft, 4340 Forged, 3.48 Stroke, 350 Main
    Scat 435010 Chevy 350 Crankshaft, 4340 Forged, 3.48 Stroke, 350 Main
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 51 lbs.
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT

    Note: If you are going to run 915-15500 in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate. 

  • Scat 945425 B/B Chevy Cast Steel Crankshaft-4.25 Stroke, Int. Balanced
    Scat 945425 B/B Chevy Cast Steel Crankshaft-4.25 Stroke, Int. Balanced
    x
                

    It is hard to beat cubic inches. High-tech, fatigue-resistant 80-60-06 cast steel crank has near forged steel endurance at a value price. These cranks have a 700 horsepower rating. For 2-piece rear main seal blocks.

    • 454 Main Journal
    • 2.200" rod pin
    • 67 lb. approximate weight
    • Internally Balanced
  • Scat 945420 B/B Chevy Cast Steel Crankshaft-4.25 Stroke, Ext. Balanced
    Scat 945420 B/B Chevy Cast Steel Crankshaft-4.25 Stroke, Ext. Balanced
    x
                

    It is hard to beat cubic inches. High-tech, fatigue-resistant 80-60-06 cast steel crank has near forged steel endurance at a value price. These cranks have a 700 horsepower rating. For 2-piece rear main seal blocks.

    • 454 Main Journal
    • 2.200" rod pin
    • 67 lb. approximate weight
    • Externally Balanced
  • Scat 4-400-4000-6000 434 Chevy 4340 Forged Crankshaft, 4.00 Stroke
    Scat 4-400-4000-6000 434 Chevy 4340 Forged Crankshaft, 4.00 Stroke
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT
    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 55 lbs.
  • Scat 4-350-3875-6000 395 Chevy 4340 Forged Crankshaft, 3.875 Stroke
    Scat 4-350-3875-6000 395 Chevy 4340 Forged Crankshaft, 3.875 Stroke
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 350 Main
    • 53 lbs. 
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT
  • Scat 440050 400 Chevy 4340 Forged Crankshaft, 3.75 Stroke, 400 Main
    Scat 440050 400 Chevy 4340 Forged Crankshaft, 3.75 Stroke, 400 Main
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 55 lbs.
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT
  • Scat 440076 421 Chevy 4340 Forged Crankshaft, 3.875 Stroke, 400 Main
    Scat 440076 421 Chevy 4340 Forged Crankshaft, 3.875 Stroke, 400 Main
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT
    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 55 lbs.
  • Scat 4-350-3750-5700 383 Chevy 4340 Forged Crankshaft, 3.75 Stroke
    Scat 4-350-3750-5700 383 Chevy 4340 Forged Crankshaft, 3.75 Stroke
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 52 lbs.
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT

    Note: If you are going to run 915-15550 in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate. 

  • Scat 435031LW F43 S/B Chevy Crankshaft-3.50 Stroke-350 Main-2.10 Rod
    Scat 435031LW F43 S/B Chevy Crankshaft-3.50 Stroke-350 Main-2.10 Rod
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 435062LW F43 S/B Chevy Crankshaft-3.75 Stroke-350 Main-2.10 Rod
    Scat 435062LW F43 S/B Chevy Crankshaft-3.75 Stroke-350 Main-2.10 Rod
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 4-350-4000-6000 Chevy 4340 Forged Crankshaft-4 Stroke, 350 Main
    Scat 4-350-4000-6000 Chevy 4340 Forged Crankshaft-4 Stroke, 350 Main
    x
                

    As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear reisistance
    • Lightening holes in all rod throws
    • Large radius on all journals
    • Heat treated, shot peened
    • Designed at SCAT
    • Engineered at SCAT
    • Inspected & micropolished at SCAT
    • For 2-piece rear main blocks
    • 2.100" rod pin
    • 408 & 434 Chevy Crankshaft
    • 54 lbs.
  • Scat 350-4000-6000-21LW F43 Chevy Crankshaft 4 Stroke 350 Main 2.1 Rod
    Scat 350-4000-6000-21LW F43 Chevy Crankshaft 4 Stroke 350 Main 2.1 Rod
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 350-3500-5700-18LW F43 Chevy Crankshaft, 3.50 Stroke, 350 Main
    Scat 350-3500-5700-18LW F43 Chevy Crankshaft, 3.50 Stroke, 350 Main
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 435061LW F43 Light Chevy Crankshaft-3.75 Stroke-350 Main-2.00 Rod
    Scat 435061LW F43 Light Chevy Crankshaft-3.75 Stroke-350 Main-2.00 Rod
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 435011LW F43 Light Chevy Crankshaft 3.335 Stroke, 350 Main
    Scat 435011LW F43 Light Chevy Crankshaft 3.335 Stroke, 350 Main
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Scat 350-3500-5700-20LW F43 Chevy Crankshaft 3.5 Stroke 350 Main 2 Rod
    Scat 350-3500-5700-20LW F43 Chevy Crankshaft 3.5 Stroke 350 Main 2 Rod
    x
                

    Lightweight, strong and at a price you can afford. These 4340 forged steel cranks will really make a difference in your performance.

    • Fits small block Chevy with 2-piece rear main seal
    • Straight shot & chamfered oil holes
    • Nitride hardened for superior wear resistance
    • Profiled and pendulum cut counterweights
    • Gun-drilled main line hole for lightening and equalization of crankcase pressure
    • Star tail for reduced weight
  • Small Block 350 Chevy Rotating Assem., 1-Piece, .456 Hollow Dome, 5.7 Rod
    Small Block 350 Chevy Rotating Assem., 1-Piece, .456 Hollow Dome, 5.7 Rod
    x
                

    Speedway introduces forged rotating assembly engine rebuild kits, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings. New one piece rear main cast steel crank. Standard size journals. Hyperuetectic piston set and Speedway Super Stock rods. ARP rod bolts.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours.

    NOTE: Piston rings are not included and must be purchased separately.

    Kits include:

    • Scat Cast Steel Crankshaft
      • One-piece rear main
      • 80-60-06 cast steel construction
      • Fatigue-resistant with near forged steel endurance
      • Standard size journals
    • Speedway 5140 I-Beam Claimer Connecting Rods
      • 5140 heat treated steel
      • Shot peened and magnafluxed
      • Press pin
      • 5.7" length
      • 646 grams
    • KB Signature Series Hypereutectic Claimer Pistons
      • Coated skirts
      • Wrist pin lock rings
      • T-5 hypereutectic construction
      • Can be used with press fit or floating wrist pins
  • Forged Street Small Block Chevy 383 Rotating Assembly, 6 Inch I-Beam Rods
    Forged Street Small Block Chevy 383 Rotating Assembly, 6 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

  • Forged Street Small Block Chevy 383 Rotating Assembly, 5.7 Inch I-Beam Rods
    Forged Street Small Block Chevy 383 Rotating Assembly, 5.7 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

  • Premium Chevy 350 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod
    Premium Chevy 350 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod
    x
                Please view the product's page for more information
            
  • Forged Small Block Chevy Rotating Assembly, 350 Flat Top, H-Beam, 5.7 Rods
    Forged Small Block Chevy Rotating Assembly, 350 Flat Top, H-Beam, 5.7 Rods
    x
                Please view the product's page for more information
            
  • Forged Small Block Chevy Rotating Assembly, 383 Dome, H-Beam, 5.7 Rods
    Forged Small Block Chevy Rotating Assembly, 383 Dome, H-Beam, 5.7 Rods
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings. 

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 383: 4.000" bore x 3.75" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

  • Forged Small Block Chevy Rotating Assembly, 383 Flat Top, H-Beam, 6 Rod
    Forged Small Block Chevy Rotating Assembly, 383 Flat Top, H-Beam, 6 Rod
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 383: 4.000" bore x 3.75" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

  • Forged Small Block Chevy Rotating Assembly, 383 Flat Top, H-Beam, 5.7 Rods
    Forged Small Block Chevy Rotating Assembly, 383 Flat Top, H-Beam, 5.7 Rods
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 383: 4.000" bore x 3.75" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

  • Forged Small Block Chevy Rotating Assembly, 383 Dome, H-Beam, 6 Inch Rods
    Forged Small Block Chevy Rotating Assembly, 383 Dome, H-Beam, 6 Inch Rods
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings. 

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 383: 4.000" bore x 3.75" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

  • Forged Small Block Chevy Rotating Assembly, 350 Flat Top, H-Beam, 6 Rod
    Forged Small Block Chevy Rotating Assembly, 350 Flat Top, H-Beam, 6 Rod
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings. 

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 383: 4.000" bore x 3.75" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

  • Forged Street Small Block Chevy 377 Rotating Assembly, 6 Inch I-Beam Rods
    Forged Street Small Block Chevy 377 Rotating Assembly, 6 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.  Includes spacers for main bearings.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

  • Forged Street Small Block Chevy 400 Rotating Assembly, 6 Inch I-Beam Rods
    Forged Street Small Block Chevy 400 Rotating Assembly, 6 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

  • Forged Street Small Block Chevy 377 Rotating Assembly, 5.7 Inch Rods
    Forged Street Small Block Chevy 377 Rotating Assembly, 5.7 Inch Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.  Includes spacers for main bearings.

    NOTE: Piston rings are not included and must be purchased separately.

     

  • Forged Street Small Block Chevy 350 Rotating Assembly, 5.7 Inch I-Beam Rods
    Forged Street Small Block Chevy 350 Rotating Assembly, 5.7 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

  • Forged Street Small Block Chevy 400 Rotating Assembly, 5.7 Inch I-Beam Rods
    Forged Street Small Block Chevy 400 Rotating Assembly, 5.7 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

  • Forged Street Small Block Chevy 350 Rotating Assembly, 6 Inch I-Beam Rods
    Forged Street Small Block Chevy 350 Rotating Assembly, 6 Inch I-Beam Rods
    x
                

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

    These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

    All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

    Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.

    NOTE: Piston rings are not included and must be purchased separately.

     

  • Forged Small Block Chevy Rotating Ass., 434 Dome, 400 Main Journal, 6 Rod
    Forged Small Block Chevy Rotating Ass., 434 Dome, 400 Main Journal, 6 Rod
    x
                

    Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.

    All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

    If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

    Chevy 434: 4.125" bore x 4.00" stroke

    NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

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