Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Oval Track

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Oval Track
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Shop Oval Track Engines At Speedway Motors

Speedway Motors is the circle track engine authority! Whether you have a Ford or Chevy race motor, Speedway has the engine parts you need at the best prices around. Our large assortment of iron cylinder heads, performance camshafts and racing valve train components allows you to tailor your engine to any racing condition. Speedway also has a variety of durable claimer engine kits, oil pumps and oil pans to help keep costs down without sacrificing performance or reliability.

Oval Track, Crankshaft Kits

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Featured Products
  • Product Rating: 5.00 Stars
    $149.99
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                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. 


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    $219.99
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                Speedway introduces rotating assemblies, with an optional balance job. Includes 2-pc rear main seal cast steel crank, rods and pistons. Cranks are new so they use standard size bearings. 

    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.

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    $2,177.99
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    Our lightweight forged rotating assembly engine rebuild kits include a 44-45 lb. Scat Superlight 4340 forged 2-pc rear main seal crankshaft, Scat 4340 forged I-beam connecting rods and Mahle pistons complete with wrist pins, locks and rings. Rod and main bearings included. Standard size journals.

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


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  • Product Rating: 4.00 Stars
    $219.99
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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.

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    $999.99 $969.99
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    These rotating assemblies are designed for either street or race use and include Keith Black hypereutectic pistons, I-beam rods, and a Scat cast steel crankshaft.

    • Scat cast steel 3.85" stroker crank
      • 80-60-06 cast steel construction
      • Fits early and late blocks
    • Speedway 351W Super Stock I-Beam Rods
      • 5.956" length
      • .912" pin
      • Resized, magnafluxed, clearanced
      • 170,000 psi bolts
    • Keith Black hypereutectic dish pistons
      • T6 heat treated construction
      • Available in .030" or .040" oversizes
    • Clevite main and rod bearings

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

    Due to the many variations in balancers and flywheels, Speedway Motors does not offer balancing services on any Ford crankshafts or rotating assemblies.

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  • No Reviews
    $1,299.99
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    x
                

    These rotating assemblies are designed for either street or race use and include Keith Black hypereutectic pistons, H-beam rods, and a Scat cast steel crankshaft.

    • Scat Cast Steel 3.85" stroker crank
      • 80-60-06 cast steel construction
      • Fits early and late blocks
    • Scat 4340 H-beam connecting rods
      • 5.955" length
      • .912" pin
      • Bronze bushings
      • ARP bolts
    • Keith Black Hypereutectic Dish Pistons
      • T6 heat treated construction
      • Available in .030" or .040" oversizes
    • Clevite main and rod bearings

    NOTE: Piston rings (Style A rings) are not included and must be purchased separately.

    Due to the many variations in balancers and flywheels, Speedway Motors does not offer balancing services on any Ford crankshafts or rotating assemblies.

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  • On Sale
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    $1,099.99 $953.99
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    x
                

    These rotating assemblies are designed for either street or race use and include Keith Black hypereutectic pistons, I-beam rods, and a Scat cast steel crankshaft. 

    • Scat cast steel 3.4" stroker crank
      • 80-60-06 cast steel construction
      • Fits early and late blocks
    • Scat 4340 I-beam connecting rods
      • 5.4" long
      • Bronze bushings
      • Set of 8 rods
    • Keith Black hypereutectic flat top pistons
      • T6 heat treated construction
      • Available in .030" and .040" oversizes
    • Clevite main and rod bearings

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

    Due to the many variations in balancers and flywheels, Speedway Motors does not offer balancing services on any Ford crankshafts or rotating assemblies.

    Go to Product Page
  • On Sale
    No Reviews
    $1,549.99 $1,439.99
    Quick View Details
    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 3.48" stroke

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

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$2,177.99
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$1,299.99 $1,223.99
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Product Rating: 5.00 Stars
$149.99
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$679.99
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$2,177.99
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$2,049.99 $1,899.99
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$999.99 $969.99
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$1,379.99
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$669.99
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$1,409.99
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$219.99
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$1,359.99
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$2,114.99
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$2,114.99
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$2,095.99 $1,999.99
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$1,379.99
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$2,095.99 $1,999.99
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$2,177.99
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No Reviews
$1,099.99 $953.99
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Product Rating: 4.00 Stars
$219.99
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$679.99
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$1,349.99 $1,169.99
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$1,399.99
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$1,058.99
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$2,177.99
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$999.99 $899.99
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$2,114.99
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$66.11 $59.99
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$1,549.99 $1,439.99
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On Sale
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$1,549.99 $1,439.99
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