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Eagle 129104010

Eagle Chevy LS Competition Rotating Assemblies

Eagle 129104010


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Estimated to ship directly from the manufacturer on 05/29/18
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Eagle 129104010 Eagle Chevy LS Competition Rotating Assemblies $2,139.99
Competition Rotating Assembly
Stroke: 4.000
Disp. @ 4.010: 404
Rod Length: 6.125
Pistons: -12cc Dish
Rings: File Fit
Comp. Ratio 66cc: 10.8

Eagle 129104010 Details

LS Competition Rotating Assemblies

  • 4.010" Bore
  • 66cc Heads
  • 24 Tooth Reluctor

    Internal Balance - Flexplate/Flywheel and Balancer Not Included

  • Specifications:

    Manufacturer's Part Number:

    The Eagle Chevy LS Competition Rotating Assemblies offer ultimate performance, reliability and strength for engines producing up to 750 horsepower. These affordable kits include quality components including an Eagle 4340 forged steel crankshaft, Eagle H-Beam rods, Mahle or Arias pistons, Hastings rings and Clevite or King bearings!


    • Assembly part numbers that begin with “B” are balanced by Eagle and require no additional balancing.  Part numbers that do not begin with “B” are unbalanced assemblies and must be balanced by a qualified machine shop before use.
    • All kits are designed for internal balance.
    • LS1 and LS6 engines feature a standard bore size of 3.900", kits are available in .005" oversize.
    • LS2, LQ4/LQ9, LY6 and L76 engines feature a standard bore size of 4.000", kits are available in .005", .010", .030" and .060" oversizes.
    • LS3/L92/L99 and LS9 engines feature a standard bore size of 4.065", kits are available in standard bore, .005" and .060" oversizes.
    • LS7 engines feature a standard bore size of 4.125", kits are available in standard bore and .030" oversize.
    • Please verify reluctor ring tooth count, bore size and cylinder head volume to ensure proper kit selection.
    • Eagle Specialty Products reserves the right to substitute pistons due to availability.

    How much horsepower can this hold and how much torque?

    Asked by: Chandler Young
    The Eagle Competition rotating assemblies will support 750+
    Answered by: Dean R
    Date published: 2018-01-29
    • y_2018, m_5, d_25, h_5CST
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations