Chevy 350 4340 Forged Std Weight Competition Rotating Assembly 421ci
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SCATPART NUMBER: 942-1-40906

Chevy 350 4340 Forged Std Weight Competition Rotating Assembly 421ci

$2,45463$2583.82You Save$129.19
ShippingShips on 09/21/2026
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350 Main Journals
  • 421 Cubic Inch
  • 3.875'' Crank Stroke
  • 6.000'' Rod Length
  • 2-Piece Rear Seal
    • Chevy 350 4340 Forged Std Weight Competition Rotating Assembly
    • 421ci
    • 4.155'' Bore
    • Mahle Forged Dish Piston, -22cc
    • 10.7:1 w/58cc; 10.1:1 w/64cc; 9.0:1 w/76cc
    • 3.875'' Crank Stroke
    • 6.000'' Rod Length
    • Unbalanced Assembly

      This Unbalanced Complete Assembly Includes:
    • 4340 Forged Standard Weight Crankshaft
    • Pro Sport H-Beam Connecting Rods with 7/16" Cap Screws
    • Forged Pistons with Piston Rings
    • Main & Rod Bearings
    • Stroker Clearanced
    • Unbalanced Assembly DOES NOT Include Flexplate and Harmonic Damper.
    Part TypeEngine Rotating Assembly Kit
    BrandSCAT
    Package Height14.0
    Package Width19.0
    Package Length26.0
    Weight90.0 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part Number1-40906
    Package Qty1
    Package TypeEA
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