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Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith
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Economy Small Block Chevy Rotating Assembly

Price: $49.99 - $479.99
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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.

Kits include:

  • Speedway Cast Steel Crankshaft
    • Two-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" or 6.0" lengths available
  • 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
  • Speedway 5140 I-Beam Connecting Rods
    • 5.7" length
      • Press pin
      • 646 grams
    • 6.0" length
      • Press pin
      • 585 grams
    Reviews for Item #: 91510206
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    Print Page
    350 Flat Top-Four Valve Relief 5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510206
    Item Details:
    Flat top, 4 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 350 Pistons - Flat 4V Relief
    Item #:
    4749901
    Item Details:
    C/R 58cc=10.9, 64cc=10.2, 76cc=9.0
    Piston/Pin Weight: 630 g
    Rod Length: 5.7"
     
    (0 Rating)
    350 Flat Top-Two Valve Relief 5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510207
    Item Details:
    Flat top, 2 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 350 Pistons - Flat Top
    Item #:
    4749902
    Item Details:
    C/R 58cc=10.7, 64cc=10.4, 76cc=9.1
    Piston/Pin Weight:614 g
    Rod Length: 5.7"
     
    (0 Rating)
    350 Flat Top-Two Valve Relief 6" Rod
    Price:
    $469.99
    EA
    Item #:
    91510212
    Item Details:
    Flat top, 2 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 6.0"
    Item #:
    91015324
    Item Details:
    Press Pin - 585 grams
    1
    Claimer Chevy 350 Pistons - Flat Top
    Item #:
    4749908
    Item Details:
    C/R 58cc=11.2, 64cc=10.4, 76cc=9.1
    Piston/Pin Weight: 541 g
    Rod Length: 6.0"
     
    (0 Rating)
    350 .150" Solid Dome - 5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510208
    Item Details:
    0.150" solid dome
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 350 Pistons - .150 Dome
    Item #:
    4749904
    Item Details:
    C/R 58cc=12.7, 64cc=11.6, 76cc=10.1
    Piston/Pin Weight: 762 g
    Rod Length: 5.7"
     
    (0 Rating)
    350 .275" Solid Dome-5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510209
    Item Details:
    0.275" solid dome
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 350 Pistons - .275 Dome
    Item #:
    4749905
    Item Details:
    C/R 58cc=13.9, 64cc=12.7, 76cc=10.8
    Piston/Pin Weight: 772 g
    Rod Length: 5.7"
     
    (0 Rating)
    350 .465" Hollow Dome-5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510211
    Item Details:
    0.465 hollow dome
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 350 Pistons - .465 Dome
    Item #:
    4749903
    Item Details:
    C/R 58cc=14.9, 64cc=13.5, C/R 76cc=11.3
    Piston/Pin Weight: 778 g
    Rod Length: 5.7"
     
    (0 Rating)
    377 Flat Top-Two Valve Relief-5.7" Rod
    Price:
    $479.99
    KT
    Item #:
    91510213
    Item Details:
    Flat top, 2 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 350 Cast Steel Crankshaft
    Item #:
    91515350
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 377/400 Pistons - Flat Top
    Item #:
    4749907
    Item Details:
    (377) C/R 64cc=10.9, 76cc=9.6
    (400) C/R 58cc=12.6, 64cc=11.7, 76cc=10.3
    Piston/Pin Weight: 630 g
    Rod Length: 5.7(377), 5.565(400)
    Main Bearing Spacers For S/B Chevy 350 Crank
    Item #:
    5051120
    1
     
    (0 Rating)
    383 Flat Top-.110" Dish-5.7" Rod
    Price:
    $449.99
    KT
    Item #:
    91510221
    Item Details:
    0.110" dish
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 383 Cast Steel Crankshaft
    Item #:
    91515383
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 383 Pistons - .110 Dish
    Item #:
    4749912
    Item Details:
    C/R 58cc=10.9, 64cc=10.2, 76cc=9.1
    Piston/Pin Weight: 594 g
    Rod Length: 5.7"
     
    (0 Rating)
    383 Flat Top-Two Valve Relief-5.7"
    Price:
    $459.99
    EA
    Item #:
    91510214
    Item Details:
    Flat top, 2 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 383 Cast Steel Crankshaft
    Item #:
    91515383
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 383 Pistons - Flat Top
    Item #:
    4749906
    Item Details:
    C/R 58cc=12.0, 64cc=11.1, 76cc=9.8
    Piston/Pin Weight: 607 g
    Rod Length: 5.7"
     
    (0 Rating)
    383 Flat Top-Two Valve Relief-6" Rod
    Price:
    $469.99
    EA
    Item #:
    91510217
    Item Details:
    Flat top, 2 valve relief
    Ring style: C
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 383 Cast Steel Crankshaft
    Item #:
    91515383
    1
    S/B Chevy 5140 Steel I-Beam Rods, 6.0"
    Item #:
    91015324
    Item Details:
    Press Pin - 585 grams
    1
    Claimer Chevy 383 Pistons - Flat Top
    Item #:
    4749909
    Item Details:
    C/R 58cc=11.2, 64cc=10.1, 76cc=9.8
    Piston/Pin Weight: 527 g
    Rod Length: 6", Ring Style: C
     
    (0 Rating)
    383 .150" Solid Dome - 5.7" Rod
    Price:
    $459.99
    KT
    Item #:
    91510216
    Item Details:
    0.150" solid dome
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 383 Cast Steel Crankshaft
    Item #:
    91515383
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 383 Pistons - .150 Dome
    Item #:
    4749910
    Item Details:
    C/R 55cc=13.6, 64cc=12.5, 76cc=10.8
    Piston/Pin Weight: 612 g
    Rod Length: 5.7"
     
    (0 Rating)
    400 Flat Top-Two Valve Relief - 5.7" Rod
    Price:
    $459.99
    KT
    Item #:
    91510219
    Item Details:
    Flat top, 2 valve relief
    Ring style: A
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Speedway Chevy 400 Cast Steel Crankshaft
    Item #:
    91515400
    Item Details:
    NOTE: Cut for a 5.7 rod and will NOT fit stock 5.565 rod.
    1
    S/B Chevy 5140 Steel I-Beam Rods, 5.7"
    Item #:
    91015327
    Item Details:
    Press Pin - 646 grams
    1
    Claimer Chevy 400 Pistons - Flat Top
    Item #:
    4749911
    Item Details:
    C/R 58cc=12.6, 64cc=11.7, 76cc=10.3
    Piston/Pin Weight: 624 g
    Rod Length: 5.7"
     
    (0 Rating)
    Labor To Side Clearance Rods and Balance Rotating Assembly - 380/377 Kits
    Price:
    $149.99
    KT
    On Order
    Back In Stock Notification
    Item #:
    91510200
    Item Details:
    350/377 kit
    Please allow 24-48 hrs for a kit to ship w/ this labor option.
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Labor-Balance Rotating Assy
    Item #:
    91600016
    1
    Side Clearance 8 Rods
    Item #:
    91600017
    1
     
    (0 Rating)
    Labor To Side Clearance Rods and Balance Rotating Assembly - 383/400 Kits (W/ Balance Plt & 8" Damp)
    Price:
    $219.99
    KT
    On Order
    Back In Stock Notification
    Item #:
    91510201
    Item Details:
    383/400 kit (includes balance plate and 8" damper)
    Please allow 24-48 hrs for a kit to ship w/ this labor option.
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Labor-Balance Rotating Assy
    Item #:
    91600016
    1
    Side Clearance 8 Rods
    Item #:
    91600017
    1
    SBC 400 Harmonic Balancer - 8" Diameter - Steel
    Item #:
    91015400
    1
    1955-85 S/B Chevy Balancing Plate for 2 Piece Rear Main Seal Design
    Item #:
    91615375
    1
     
    (0 Rating)
    Labor - Install Pistons on Rods
    Price:
    $49.99
    ST
    In Stock
    Item #:
    91600015
    Item Details:
    Press fit pistons on rods
     
    (0 Rating)
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    Labor To Side Clearance Rods and Balance Rotating Assembly - 380/377 Kits
    Price:
    $149.99
    KT
    On Order
    Back In Stock Notification
    Item #:
    91510200
    Item Details:
    350/377 kit
    Please allow 24-48 hrs for a kit to ship w/ this labor option.
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Labor-Balance Rotating Assy
    Item #:
    91600016
    1
    Side Clearance 8 Rods
    Item #:
    91600017
    1
     
    (0 Rating)
    Labor - Install Pistons on Rods
    Price:
    $49.99
    ST
    In Stock
    Item #:
    91600015
    Item Details:
    Press fit pistons on rods
     
    (0 Rating)
    Labor To Side Clearance Rods and Balance Rotating Assembly - 383/400 Kits (W/ Balance Plt & 8" Damp)
    Price:
    $219.99
    KT
    On Order
    Back In Stock Notification
    Item #:
    91510201
    Item Details:
    383/400 kit (includes balance plate and 8" damper)
    Please allow 24-48 hrs for a kit to ship w/ this labor option.
    Open Kit Components
    - Selection of individual components may be necessary for kit purchase.
    Kit Components
    Labor-Balance Rotating Assy
    Item #:
    91600016
    1
    Side Clearance 8 Rods
    Item #:
    91600017
    1
    SBC 400 Harmonic Balancer - 8" Diameter - Steel
    Item #:
    91015400
    1
    1955-85 S/B Chevy Balancing Plate for 2 Piece Rear Main Seal Design
    Item #:
    91615375
    1
     
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