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  • 6 3/4 Inch Chevy Harmonic Balancer Covers
    6 3/4 Inch Chevy Harmonic Balancer Covers
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                6.75" Harmonic balancer covers for Small Block Chevys. Available blue, black, red, chrome or billet. 
            
  • ARP Fasteners 234-2501 Small Block Chevy Balancer Bolt & Washer
    ARP Fasteners 234-2501 Small Block Chevy Balancer Bolt & Washer
    x
                Made from 8740 chromoly. Bolt feature increased diameter, 3/4" 12 point head for improved accessibility and easy wrenching. Hardened parallel ground washer prevents galling while promoting even torque loading. 170,000 PSI. 

    For S/B Chevy.
  • 1955-85 Small Block Chevy Balancing Plate
    1955-85 Small Block Chevy Balancing Plate
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                When running a 383 or 400 S/B Chevy with a 153 tooth flexplate or flywheel, you need to have a balancing plate. These fit between the crankshaft and flexplate and correctly balance the engine without resorting to a big heavy flywheel. 

    Lets you balance your Small Block Chevy 400 or 383 with a 350 flywheel (manual transmission flywheel or automatic transmission flex plate) and a bolt-on balancing plate. Road and race tested. Allows use of lighter 350 flywheel to rev quicker. Precision stamped steel.

    916-15375 Instructions (PDF)

  • Professional Products 80010 Chevy 350 Lightweight Balancer, 6 Inch
    Professional Products 80010 Chevy 350 Lightweight Balancer, 6 Inch
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    This 6" harmonic balancer fits 350 c.i. Small Block Chevys and only weighs 5.1 lbs. Plus, the balancing cut out is on the backside so they can't tell what crank you're running. Damper is a press-on fit.

    • For internally balanced engines
    • Durable nodular iron construction
    • High temperature elastomer bond
    • Engraved timing marks every 90° 
    • Includes 60° of easy-to-read timing marks 
    • Rated to 10,000 RPM
    • NOT SFI approved

    910-15363 Instructions (PDF) 

    Technical Notes (PDF) 

  • Mr Gasket 1591 Timing Tape, 8 Inch Balancer
    Mr Gasket 1591 Timing Tape, 8 Inch Balancer
    x
                A convenient way to avoid the expense of having the harmonic balancer degreed. This timing tape is precisely accurate in calibration. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer. For S/B & B/B Chevy V8 engines.
            
  • Small Block Chevy Harmonic Balancer, 6-3/4 Inch, Black
    Small Block Chevy Harmonic Balancer, 6-3/4 Inch, Black
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    Small block Chevy stock-type replacement 6-3/4" diameter harmonic balancer. For internal balance engines.

    • NOT recommended for RPM's in excess of 6500
    • NOT SFI certified
    • Internal balance
  • 2-In-1 S/B Chevy Engine Rotating Tool & Balancer Bolt/Washer
    2-In-1 S/B Chevy Engine Rotating Tool & Balancer Bolt/Washer
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    This dual-purpose hardened steel tool serves a both a rotating tool and balancer retainer. It simply fits into the harmonic balancer on Small Block Chevys and provides a positive way of rotating the engine (in either direction) when setting valves, locating TDC or degreeing cam. It is permanently retained on the motor serving as a balancer washer/bolt assembly to retain the balancer/damper on the crank.

    Tool has a 1-1/16" hex head. Instuctions included.

    910-81020 Instructions (GIF)

  • Big Block Chevy Balancing Plate
    Big Block Chevy Balancing Plate
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    Lets you balance your Big Block Chevy 454 engine with a 350 flywheel (manual transmission flywheel or automatic transmission flex plate) and a bolt-on balancing plate.

    • Allows use of lighter 350 flywheel to rev quicker
    • Fits between the crankshaft and flexplate
    • Correctly balances the engine without resorting to a big heavy flywheel
    • Precision stamped steel plate
    • Road and race tested

    Note: The weight welded to this plate is positioned to the block side of the plate.

  • Chevy 383-400 Lightweight Balancer, 6-3/4 Inch
    Chevy 383-400 Lightweight Balancer, 6-3/4 Inch
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    This 6-3/4" balancer fits 383/400 c.i. Small Block Chevys and only weighs 7-3/4 lbs. Plus, the balancing cut out is on the backside so they can't tell what crank you're running. Damper is a press-on fit.

    • Durable nodular iron construction
    • High temperature elastomer bond
    • This balancer is 1.20" thick
    • Rated to 6,500 RPM
    • NOT SFI approved 
  • LED Timing Pointer, Small Block Chevy for 7 1/4 Inch Balancer
    LED Timing Pointer, Small Block Chevy for 7 1/4 Inch Balancer
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    SB Chevy with 7-1/4" Balancer

    Someone should have thought of this years ago!

    This billet aluminum, Small Block Chevy timing tab has a built-in, self-powered LED timing light that eliminates the need for a separate timing light or car battery hook-up. Permanently mounted so it's always there when you need it. This light makes it easy for one person to set timing.

  • LED Timing Pointer, Small Block Chevy for 7 Inch Balancer
    LED Timing Pointer, Small Block Chevy for 7 Inch Balancer
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    Someone should have thought of this years ago!

    This billet aluminum, Small Block Chevy timing tab has a built-in, self-powered LED timing light that eliminates the need for a separate timing light or car battery hook-up. Permanently mounted so it's always there when you need it. This light makes it easy for one person to set timing.

  • 8 Inch Small Block Chevy Harmonic Balancer Covers
    8 Inch Small Block Chevy Harmonic Balancer Covers
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                8" Harmonic balancer covers for Small Block Chevys. Available blue, black, red, chrome or billet.
            
  • Machining Labor, 350/383 Chevy Balance & Side Clearance 6 Inch Rods
    Machining Labor, 350/383 Chevy Balance & Side Clearance 6 Inch Rods
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    Must be purchased along with one of our complete engine rotating assemblies (service not available separately). Machining labor includes balancing the entire rotating assembly (flexplate and balancer included with this kit) and side clearancing 8 connecting rods.

    For one-piece rear main blocks.

    Please allow 24-48 hrs for a kit to ship w/ this labor option.

  • Machining Labor, 383 Chevy Balance & Side Clearance 5.7 Inch Rods
    Machining Labor, 383 Chevy Balance & Side Clearance 5.7 Inch Rods
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    Must be purchased along with one of our complete engine rotating assemblies (service not available separately). Machining labor includes balancing the entire rotating assembly (flexplate and balancer included with this kit) and side clearancing 8 connecting rods.

    For one-piece rear main blocks.

    Please allow 24-48 hrs for a kit to ship w/ this labor option.

  • Mr Gasket 1589 Timing Tape, 7 Inch Balancer
    Mr Gasket 1589 Timing Tape, 7 Inch Balancer
    x
                A convenient way to avoid the expense of having the harmonic balancer degreed. This timing tape is precisely accurate in calibration. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer. For S/B & B/B Chevy V8 engines.
            
  • 1986-96 Small Block Chevy Balancing Plate
    1986-96 Small Block Chevy Balancing Plate
    x
                When running a 383 or 400 S/B Chevy with a 153 tooth flexplate or flywheel, you need to have a balancing plate. These fit between the crankshaft and flexplate and correctly balance the engine without resorting to a big heavy flywheel. 

    Lets you balance your Small Block Chevy 400 or 383 with a 350 flywheel (manual transmission flywheel or automatic transmission flex plate) and a bolt-on balancing plate. Road and race tested. Allows use of lighter 350 flywheel to rev quicker. Precision stamped steel.

  • Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
    Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
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    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
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    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
  • 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 153 Tooth
    1955-1985 Chevy Flexplate for 2-Piece Rear Main, 153 Tooth
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    These non-SFI rated S/B Chevy automatic transmission flexplates are suggested whenever installing a new engine or transmission. These flexplates are for two-piece rear main seal engines ONLY.

    • (Internal balance, 153-tooth)
      • Dual bolt patterns, 9-3/4" and 10-3/4"
      • Flexplate O.D. 12-3/4"
      • Center Hole 2-1/2"

    Make sure you choose the correct flywheel for your application by reading our tech article. Small Block Chevy - How to Choose a Flexplate.

  • Trans-Dapt 4961 B/B Chevy Chrome Timing Tab for 8 Inch Balancer
    Trans-Dapt 4961 B/B Chevy Chrome Timing Tab for 8 Inch Balancer
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                These Trans-Dapt chrome finished steel timing tabs fit 1965-1990 Big Block Chevy 396-454 with 8" balancer.
            
  • 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
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    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.

  • ARP Fasteners 235-2501 Big Block Chevy Balancer Bolt with Washer
    ARP Fasteners 235-2501 Big Block Chevy Balancer Bolt with Washer
    x
                8740 Chromoly. Bolt feature increased diameter, 12 point head for improved accessibility and easy wrenching.  Hardened parallel ground washer prevents galling while promoting even torque loading. 170,000 PSI. 

    For B/B Chevy, use 3/4" 12 point socket.

    "Underhead" length is 2.470".
  • ARP 134-2501 Small Block Chevy Harmonic Balancer Bolt Kit
    New
    ARP 134-2501 Small Block Chevy Harmonic Balancer Bolt Kit
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    This ARP harmonic balancer bolt kit comes with 1 black oxide bolt, washer, and assembly lube. They are designed for use on small block Chevy engines.

    • UHL: 2.470"
    • Thread Size: 7/16-20
    • Wrenching: 5/8"
    • Washer included
  • Forged S/B Chevy Rotating Assy., 434 Flat Top, 350 Main Journal, 6 Rod
    Forged S/B Chevy Rotating Assy., 434 Flat Top, 350 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.

  • Forged S/B Chevy Rotating Assy., 434 Flat Top, 400 Main Journal, 6 Rod
    Forged S/B Chevy Rotating Assy., 434 Flat Top, 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.

  • 1986-1994 Chevy 153 Tooth Flexplate 1 PC Rear Main, Ext. Balance
    1986-1994 Chevy 153 Tooth Flexplate 1 PC Rear Main, Ext. Balance
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    These non-SFI rated Small Block Chevy flexplates are suggested whenever installing a new engine or transmission. This 153-tooth flexplate fits 1985-89 externally balanced S/B Chevys (such as 4.3/305/350) with a 1-piece rear main seal. Single bolt pattern.\

    • 12-13/16" O.D.
    • 3 on 10-3/4" bolt pattern for the torque converter

    Make sure you choose the correct flywheel for your application by reading our tech article. Small Block Chevy - How to Choose a Flexplate.

     

  • Mr Gasket 1592 Timing Tape, 6 Inch Balancer
    Mr Gasket 1592 Timing Tape, 6 Inch Balancer
    x
                A convenient way to avoid the expense of having the harmonic balancer degreed. This timing tape is precisely accurate in calibration. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer. For S/B Chevy V8 engines.
            
  • Mr Gasket 1588 Timing Tape, 6-3/4 Inch Balancer
    Mr Gasket 1588 Timing Tape, 6-3/4 Inch Balancer
    x
                A convenient way to avoid the expense of having the harmonic balancer degreed. This timing tape is precisely accurate in calibration. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer. For S/B Chevy V8 engines.
            
  • 1970-90 Chevy 454 Harmonic Balancer, 8 Inch, Black
    1970-90 Chevy 454 Harmonic Balancer, 8 Inch, Black
    x
                

    Big block Chevy 454 c.i. V-8 (1970-1990) stock-type replacement harmonic balancer.

    • 8.00" O.D. 
    • External Balance
    • NOT SFI approved
  • Forged Small Block Chevy Rotating Ass., 434 Dome, 350 Main Journal, 6 Rod
    Forged Small Block Chevy Rotating Ass., 434 Dome, 350 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.

  • 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.

  • 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
            
  • Street Small Block Chevy 383 Rotating Assembly, Dish Dome, 5.7 Inch Rod
    Street Small Block Chevy 383 Rotating Assembly, Dish Dome, 5.7 Inch Rod
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    These rotating assembly engine rebuild kits are designed for street use and include Keith Black Hypereutectic pistons, Speedway 5140 I-beam rods and a Speedway Cast Steel crankshaft. 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.

    These assemblies will require balancing either by us or your machine shop.

    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.

  • 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
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    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 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 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, 421 .283 Dome, 400 Mains, 6 Rod
    Forged Small Block Chevy Rotating Assembly, 421 .283 Dome, 400 Mains, 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. 

    NOTE: A balance rotating assembly option is currently not offered for this package but the proper balancing service can be determined after your order is placed.  If you would like our balancing option service for 395 and 421 engine builds, please call 1-800-979-0122 when placing order.

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

  • Forged Small Block Chevy Rotating Assembly, 421 .283 Dome, 350 Mains, 6 Rod
    Forged Small Block Chevy Rotating Assembly, 421 .283 Dome, 350 Mains, 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. 

    NOTE: A balance rotating assembly option is currently not offered for this package but the proper balancing service can be determined after your order is placed.  If you would like our balancing option service for 395 and 421 engine builds, please call 1-800-979-0122 when placing order.

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

  • Forged Small Block Chevy Rotating Assembly, 395 .400 Dome, 350 Mains, 6 Rod
    Forged Small Block Chevy Rotating Assembly, 395 .400 Dome, 350 Mains, 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. 

    NOTE: A balance rotating assembly option is currently not offered for this package but the proper balancing service can be determined after your order is placed.  If you would like our balancing option service for 395 and 421 engine builds, please call 1-800-979-0122 when placing order.

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

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