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Eagle 2M139030

Hastings Piston Ring Set 4.030" Bore

Eagle 2M139030

356-2M139030

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Estimated ship date 09/29/17 if Ordered Today
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Eagle 2M139030 Hastings Piston Ring Set 4.030" Bore $49.99
Hastings Piston Ring Set
  • 4.030" Bore
  • 5/64" Top Ring
  • 5/64" 2nd Ring
  • 3/16" Oil Ring
  • Standard Tension
  • Moly

  • Specifications:

    Manufacturer's Part Number:
    2M139030

    These rotating assemblies are designed for pre-1986 small block Chevy with 2-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.

    Notes
  • Kits available with internal or external balance. Click "More info" below for details.
  • Chevy 305 standard bore size is 3.736". Kits available in standard bore or .020", .030", .040", and .060" oversizes.
  • Chevy 350 standard bore size is 4.000". Kits available in standard bore or .020", .030", .040", and .060" oversizes.
  • Eagle Specialty Products reserves the right to substitute pistons due to availability.

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