Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Crankshafts

If you want you engine to really "crank" out some serious power, drop in a performance crankshaft from Speedway Motors!  We carry only the best brands like Callies and Scat in a wide range of strokes for whatever application you're working on.  No matter if you're looking for a one or two piece main seal, or cast or forged steel, we've got you covered.  Not sure what you need?  Our award winning techs can help you get the perfect crankshaft for your car at a price that can't be beat.

"Cylinder Block Components, Crankshafts" Page 1 of 2

  • Garage Sale - SCAT 940050 400 Chevy Cast Steel Crankshaft
    Garage Sale
    Garage Sale - SCAT 940050 400 Chevy Cast Steel Crankshaft
    x
                Please view the product's page for more information
            
  • 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
  • Garage Sale - 460 Ford Stroker Cast Steel Crankshaft, 4-1/2 Inch
    Garage Sale
    Garage Sale - 460 Ford Stroker Cast Steel Crankshaft, 4-1/2 Inch
    x
                

    This crank is garage sale priced because it has been test fit and returned. 

     NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS   

    This is the same crankshaft that comes with our 915-545 rotating assembly.  

  • 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.
  • Callies SA0213CS Compstar 4340 Crankshaft, 427 S/B Chevy, 6.0 Rod
    Callies SA0213CS Compstar 4340 Crankshaft, 427 S/B Chevy, 6.0 Rod
    x
                Callie's solid modeling abilities provide a great  advantage in product  development. They’re able to precisely locate  material where it will  yield the greatest advantage in terms of both  strength to weight, and  balance ability.

    Beginning with properly placed counterweights that not only improve balance but reduce bearing loads, every aspect of these highly stressed components has been analyzed. The forgings are rough machined in a process that includes double stress relief operations that make these crankshafts very dimensionally stable.

    Hardened with a deep nitride, Compstar cranks are ideal for all types of abusive racing environments. All rod journals are drilled and counterweights are profiled for piston clearance. With a consistent grind and polish, along with precise stroke and index, you will see why we say these crankshafts are Compstar Correct!
  • 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 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 9-239-4250-2138 Flathead Ford Stroker Crankshaft, 4-1/4 Inch
    Scat 9-239-4250-2138 Flathead Ford Stroker Crankshaft, 4-1/4 Inch
    x
                

    These Scat flathead cranks are made from series 9000 material which is the strongest cast material known. Shot peened, ground and micro-polished to original specs. Uses 1949-1953 bearings.

    • Rod Length: 7.000"
    • Rod Pin: 2.138"
    • Internal balance
  • Speedway Chevy 350 Crankshaft, Two-Piece Main
    Speedway Chevy 350 Crankshaft, Two-Piece Main
    x
                

    New, hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. All journals are ground and polished to exacting tolerances. Superior quality stock replacement crank at a value price.

    • IMCA southern sport mod legal (Drilled only on the first rod throw)
    • Angle oil shot holes 
  • Garage Sale - Chevy 350 Crankshaft, Two-Piece Main
    Garage Sale
    Garage Sale - Chevy 350 Crankshaft, Two-Piece Main
    x
                

    This crank is garage sale priced because it appears to have been test fit.  This one looks like a GM stock replacement.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS   

  • Garage Sale - Scat Lightweight Pro Comppetition Crankshaft
    Garage Sale
    Garage Sale - Scat Lightweight Pro Comppetition Crankshaft
    x
                

    These Scat crankshafts are made from the same strong aircraft-quality forging as standard-weight cranks, but have profiled counterweights for less weight. Scat lightweight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled aero-wing counterweights and have straight shot and chamfered oil holes. Scat crankshafts are nitride-hardened, with large radii on all journals for superior wear resistance, and use lightening holes in all rod throws. Scat cranks are CNC-machined for absolute tolerances and symmetry, offering ease of balance and a reduced rotating weight.

     

    This is garage sale priced because it has been discontinued.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - 383 Chevy Cast Iron Crankshaft, 2-Piece Main, 5.7 Rod
    Garage Sale
    Garage Sale - 383 Chevy Cast Iron Crankshaft, 2-Piece Main, 5.7 Rod
    x
                

    Cast Nodular Iron crankshaft for a 350 SBC.

     

    • 3.750" stroke
    • 5.700" rod
    • large radius on all journals
    • 2 piece rear main seal
    • good for applications under 600hp

     

     

    This item is garage sale priced because it's old stock.

     

    **NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS** 

  • Garage Sale - Scat 435010 Chevy 350 Crankshaft, 4340 Forged, 3.48 Stroke, 350 Main
    Garage Sale
    Garage Sale - 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 sprin

  • Speedway Ford 302 Crankshaft, Forged Stroker, 3.40 Inch Stroke
    Speedway Ford 302 Crankshaft, Forged Stroker, 3.40 Inch Stroke
    x
                New 4340 forged steel (not cast) cranks for stock and stroker. Features highly precision ground and micro polished journals and are heat treated and stress relieved. Cranks are magnafluxed, x-rayed and sonic tested. 

    Also features a 360° indexed stroke, cross drilled oil supply with chamfered holes and nitrided journal surfaces.

  • Speedway Ford 302 Crankshaft, Stroker Cast
    Speedway Ford 302 Crankshaft, Stroker Cast
    x
                New high-tech 80-60-06 cast steel cranks offer superior fatigue resistance. These will hold up to the demands of circle track racing without breaking the budget. The 302 stroker crank will yield 347 cubic inches and fits early and late blocks.
            
  • Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    Garage Sale
    Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    x
                

    This crankshaft is garage sale priced because it has been test fit and returned.  

     NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

    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
  • Callies SAJ213CS Compstar 4340 Crankshaft, 400 S/B Chevy, 5.7 Rod
    Callies SAJ213CS Compstar 4340 Crankshaft, 400 S/B Chevy, 5.7 Rod
    x
                Callie's solid modeling abilities provide a great  advantage in product  development. They’re able to precisely locate  material where it will  yield the greatest advantage in terms of both  strength to weight, and  balance ability.

    Beginning with properly placed counterweights that not only improve balance but reduce bearing loads, every aspect of these highly stressed components has been analyzed. The forgings are rough machined in a process that includes double stress relief operations that make these crankshafts very dimensionally stable.

    Hardened with a deep nitride, Compstar cranks are ideal for all types of abusive racing environments. All rod journals are drilled and counterweights are profiled for piston clearance. With a consistent grind and polish, along with precise stroke and index, you will see why we say these crankshafts are Compstar Correct!
  • 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
  • Garage Sale - Speedway 383 Chevy Crankshaft, Two-Piece Main
    Garage Sale
    Garage Sale - Speedway 383 Chevy Crankshaft, Two-Piece Main
    x
                

    New, hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. All journals are ground and polished to exacting tolerances. Superior quality 383 stroker crank at a stock replacement price.

    For blocks with 2-piece rear main seals.

     

    This crank is garage sale priced because it has been balanced to a rotating assembly. 

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS   

  • Garage Sale - Speedway 400 Chevy Crankshaft, Two-Piece Main
    Garage Sale
    Garage Sale - Speedway 400 Chevy Crankshaft, Two-Piece Main
    x
                Please view the product's page for more information
            
  • 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
  • Speedway Ford 302 Crankshaft, Forged Stroker, 3.47 Inch Stroke
    Speedway Ford 302 Crankshaft, Forged Stroker, 3.47 Inch Stroke
    x
                New 4340 forged steel (not cast) cranks for stock and stroker. Features highly precision ground and micro polished journals and are heat treated and stress relieved. Cranks are magnafluxed, x-rayed and sonic tested. 

    Also features a 360° indexed stroke, cross drilled oil supply with chamfered holes and nitrided journal surfaces.

  • 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 932911 Flathead Ford Stroker Crankshaft, 4 Inch Stroke
    Scat 932911 Flathead Ford Stroker Crankshaft, 4 Inch Stroke
    x
                

    These Scat flathead cranks are made from series 9000 material which is the strongest cast material known. Shot peened, ground and micro-polished to original specs. Uses 1949-1953 bearings.

    • Rod Length: 7.000"
    • Rod Pin: 2.138"
    • Internal balance
  • 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 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 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. 

  • Garage Sale - 1939-53 Flathead Ford Crankshaft
    Garage Sale
    Garage Sale - 1939-53 Flathead Ford Crankshaft
    x
                

    939-53 flathead crankshaft from a stroker kit rotating assembly.  Balanced originally for 4" stroke Scat rods.  This is the crank used in our 915286 kit.

    This is Garage Sale priced because it has already been balanced with rods/pistons.
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 
  • Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    Garage Sale
    Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    x
                Please view the product's page for more information
            
  • Garage Sale - Scat 434 Chevy 4340 Forged Crankshaft, 4.00 Stroke, 400 Main
    Garage Sale
    Garage Sale - Scat 434 Chevy 4340 Forged Crankshaft, 4.00 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
     
    This is garage sale priced because it has been installed but not run.
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 
  • 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
  • Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    Garage Sale
    Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    x
                Please view the product's page for more information
            
  • 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
  • Garage Sale - Speedway Cast Steel SBC Crankshaft, Two-Piece Main
    Garage Sale
    Garage Sale - Speedway Cast Steel SBC Crankshaft, Two-Piece Main
    x
                

    New hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. Two piece rear main. 

     

    This crank is garage sale priced because it has been run. It will need to be sent to your local machine shop.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Speedway 400 Chevy Crankshaft, Two_piece Main
    Garage Sale
    Garage Sale - Speedway 400 Chevy Crankshaft, Two_piece Main
    x
                
    New, hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. All journals are ground and polished to exacting tolerances. Superior quality stock replacement crank at a value price.

    For blocks with 2-piece rear main seals.
     
    This crank is garage sale priced because i has been balanced to a rotating assembly. 
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS   
  • 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 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
  • Speedway Ford 302 Crankshaft, Forged Stroker, 3.25 Inch Stroke
    Speedway Ford 302 Crankshaft, Forged Stroker, 3.25 Inch Stroke
    x
                New 4340 forged steel (not cast) cranks for stroker engines. Features highly precision ground and micro polished journals and are heat treated and stress relieved. Cranks are magnafluxed, x-rayed and sonic tested. 

    Also features a 360° indexed stroke, cross drilled oil supply with chamfered holes and nitrided journal surfaces.

  • Garage Sale - Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
    Garage Sale
    Garage Sale - Scat 910375 383 Chevy Cast Steel Crankshaft, Ext. Balance
    x
                Please view the product's page for more information
            
  • Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    Garage Sale
    Garage Sale - Scat 9-10526R 350 Chevy Cast Crankshaft, 1-Piece Main
    x
                

    This crankshaft is garage sale priced because it has some grind marks on the counterweights and can't be sold as a first. 

     NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

    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
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