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Eagle Chevy Small Block 1pc Seal Balanced Street and Strip Rotating Assemblies
InfoVehicle Info Needed
EAGLEPART NUMBER: 356-B13007L04053

Eagle Chevy Small Block 1pc Seal Balanced Street and Strip Rotating Assemblies

$2,02999
ShippingShips on 11/18/2026
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Harmonic Balancer for Small Block Chevy

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Flywheel 168 Tooth for 1986-1999 Small Block Chevy w/1-Piece Rear Main Seal [External Balance]

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Piston Ring Filer & Grinder Tool 170/140 Grit

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Chevy 350 Small Block 1pc Seal Balanced Rotating Assemblies
  • 3.750" Stroke
  • 6.000" Rods
  • Forged Pistons
  • Externally Balanced
      • Street and Strip Rotating Assembly -
      350 1pc External
      Stroke: 3.750
      Disp. @ .040: 385
      Rod Length: 6.000
      Pistons: -5cc Flat Top
      Rings: File Fit
      Comp. Ratio 58cc/64cc: 11.8/11.0

      External balance - includes a street dampner and 153 tooth Automatic transmission flexplate. If you require the same kit with a 168 tooth flexplate, order part number - 356-B13007L04068. If you require a Manual transmission flywheel or different dampner, the factory GM 400 small block external balanced dampner and the factory 1-piece rear main seal external balance flexplate or flywheel can be used or new components will need to be purchased separately. From the factory 1-piece rear main seal small block Chevy 305, 350, LT1 and Vortec engines are balanced internally in the front and externally in the rear. When building these engines with an internal or external balance Eagle rotating assembly the balance is changed. This kit cannot be used for the 1992-97 LT1 engines due to the fact that a suitable external balance dampner/harmonic balancer does not exist for these engines.

      Performance Small Block Chevy Rotating Assemblies

      These rotating assemblies are designed for 1986-Up small block Chevy with 1-piece rear main seals. They offer affordable performance and reliability for engines making less than 500 horsepower. Kits include an Eagle Cast Steel Crankshaft; Eagle "SIR" I-Beam Rods; KB Hypereutectic, SRP, or Mahle Forged Pistons; Hastings Rings; and Clevite or King Bearings. Kits available with internal or external balance.

      Show MoreAssembly 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. Kits available in a standard bore or .020 in., .030 in., .040 in., and .060 in. oversized. Eagle Specialty Products reserves the right to substitute pistons due to availability.
    Part TypeEngine Rotating Assembly Kit
    Product LineEagle SBC 1pc Seal Balanced Street and Strip Rotating Assemblies
    BrandEAGLE
    Package Height20.25
    Package Width21.25
    Package Length38.25
    Weight115.0 PG
    Part CategoryPerformance Parts
    Crankshaft MaterialCast steel
    Piston And Ring Oversize0.04 in (1 mm)
    Main Bearing Undersize (Mm)Stock
    Wrist Pin StyleFloating
    Connecting Rod Beam StyleI-beam
    Rod Bearing Undersize (Mm)Stock
    Piston Ring Facing MaterialPlasmamoly
    Piston StyleFlat top, with two valve reliefs
    Assembly Lubricant IncludedNo
    Piston Head Volume (Cc)5
    Gaskets IncludedNo
    Rear Main Seal Style1-piece
    Main Bearing Undersize (In.)Stock
    Crankshaft IncludedYes
    Piston Rings IncludedYes
    Bore (Mm)102.616
    Actual Engine Cid385
    Engine Stroke3.75 in (95.25 mm)
    Connecting Rod MaterialForged 5140 steel
    Pistons IncludedYes
    Rod Bearing Undersize (In.)Stock
    QuantitySold as a kit
    Main Bearings IncludedYes
    Engine BalanceExternal
    Rod Bearings IncludedYes
    Connecting Rods IncludedYes
    Oil Pump IncludedNo
    Camshaft IncludedNo
    Timing Chain And Gears IncludedNo
    BalancedYes
    Piston MaterialForged aluminum
    Cam Bearings IncludedNo
    Part FitmentSemi Universal
    Plastigage IncludedNo
    Lifters IncludedNo
    Bore4.04 in (102.616 mm)
    Vendor Part NumberB13007L04053
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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