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Chevy 454 4340 Forged Std Weight Competition Rotating Assembly 460ci
InfoVehicle Info Needed
SCATPART NUMBER: 942-1-42055

Chevy 454 4340 Forged Std Weight Competition Rotating Assembly 460ci

$2,89546
ShippingShips on 11/24/2026
Lowest PriceLowest Price Guarantee

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454 Main Journals
  • 460 Cubic Inch
  • 4.000'' Crank Stroke
  • 6.135'' Rod Length
  • 2-Piece Rear Seal
      • Chevy 454 4340 Forged Std Weight Competition Rotating Assembly
    • 460ci
    • 4.280'' Bore
    • Forged Dome Piston
    • 13.7:1 w/112cc; 12.8:1 w/118cc; 11.9:1 w/124cc
    • 4.000'' Crank Stroke
    • 6.135'' Rod Length
    • Unbalanced Assembly


      This Unbalanced Complete Assembly Includes:
    • Crankshaft
    • Connecting Rods with Bushed Pin, ARP 7/16' x 1.400' 8740 Bolts
    • Piston and Piston Rings
    • Main & Rod Bearings
    • Unbalanced Assembly DOES NOT Include Flexplate and Harmonic Damper.

    Scat rotating assembly component parts are designed for the ultimate in performance. They take the ''guess work'' out of engine assemblies, just wash, Q.C. and assemble.

    Complete Assembly Includes:

      • 4340 Forged Standard Weight Crankshaft Without Center Counterweights
    Show More
    • Pro Sport 4340 Forged H-Beam Connecting Rods with ARP 8740 7/16'' x 1.400'' Cap Bolts, Bushed Pin
    • Forged or Premium Forged Pistons with Piston Rings
    • Main and Connecting Rod Bearings
    • External Balanced Rotating Assemblies Include Flexplate and Harmonic Damper
    • Internal Balanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
    • Unbalanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
    • Crank/Rod/Piston Kits DO NOT Include Piston Rings, Main and Connecting Rod Bearings, Flexplate or Harmonic Damper
    Part TypeEngine Rotating Assembly Kit
    Product LineScat Chevy Big Block 4340 Forged Standard Weight Competition Rotating Assembly
    BrandSCAT
    Package Height14.0
    Package Width19.0
    Package Length26.0
    Weight106.0 PG
    Part CategoryPerformance Parts
    Crankshaft MaterialForged 4340 steel
    Piston And Ring Oversize0.03 in (0.8 mm)
    Main Bearing Undersize (Mm)Stock
    Wrist Pin StyleFloating
    Connecting Rod Beam StyleH-beam
    Rod Bearing Undersize (Mm)Stock
    Piston Ring Facing MaterialPlasmamoly
    Piston StyleDome, with single valve relief
    Assembly Lubricant IncludedNo
    Piston Head Volume (Cc)-48
    Gaskets IncludedNo
    Rear Main Seal Style2-piece
    Main Bearing Undersize (In.)Stock
    Crankshaft IncludedYes
    Piston Rings IncludedYes
    Bore (Mm)108.712
    Actual Engine Cid460
    Engine Stroke4 in (101.6 mm)
    Connecting Rod MaterialForged 4340 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
    BalancedNo
    Piston MaterialForged aluminum
    Cam Bearings IncludedNo
    Part FitmentSemi Universal
    Plastigage IncludedNo
    Lifters IncludedNo
    Bore4.28 in (108.712 mm)
    Vendor Part Number1-42055
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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