4340 Forged Superlight Crankshaft 350 Main Journals
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SCATPART NUMBER: 942-435012-3

4340 Forged Superlight Crankshaft 350 Main Journals

$3,42802$3608.44You Save$180.42
ShippingShips on 09/09/2026
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Chevy - Small Block
  • 350 Main Journals
  • 2-Piece Rear Seal
    • 4340 Forged Superlight Crankshaft
    • 350 Main Journals
    • 3.480'' Stroke
    • 5.700'' Required Rod Length
    • 2.000'' Rod Journal Diameter
    • Internal Balance
    • 44 Pounds

      Reduced Rotating Weight
      to Increase Horsepower!

      Same innovative features as Scat's 4340 Forged Lightweight Crankshaft, but it is pounds LIGHTER!

      This race crank starts life as a Scat spec'd forging before it is precision cut, machined and ground before it is nitrided hardened for superior wear resistance. Key features of the Superlight crankshaft are the aero wing counterweights, pendulum undercut counter weights, rod journals are bridge for increased strength and lightening holes in all rod journals, large radius on all journals, straight shot and chamfered oil holes make this crankshaft super light and the racers top choice!

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      Scat has been manufacturing and distributing crankshafts, connecting rods and engine components for the automotive aftermarket since the early 1960's. This tradition continues to this day with their 42,000 square foot manufacturing facility in Redondo Beach, California, USA! All Scat engine components are made with quality at the forefront, starting with only the best materials. All of their highly trained and skilled craftsman use Scat's innovation, creativity and dedication to produce you the absolute best parts possible.

    Part TypeCrankshaft
    Product LineScat 4340 Forged Superlight Crankshaft
    BrandSCAT
    Package Height10.0
    Package Width10.0
    Package Length26.0
    Weight48.0 PG
    Part CategoryPerformance Parts
    Crankshaft MaterialForged 4340 steel
    Rod Journal Diameter2 in (50.8 mm)
    LightenedYes
    QuantitySold individually
    Crankshaft Snout StyleStandard
    Main Bearings IncludedNo
    Engine BalanceInternal
    Rod Bearings IncludedNo
    Rear Main Seal Style2-piece
    Requires Narrow BearingsYes
    Part FitmentSemi Universal
    Engine Stroke3.48 in (88.392 mm)
    Vendor Part Number4-350-3480-5700-3-20
    Package Qty1
    Package TypeEA
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