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Street Rotating Assembly Kit [GM LS Series 403 ci]
InfoVehicle Info Needed
SCATPART NUMBER: 942-1-43706BI

Street Rotating Assembly Kit [GM LS Series 403 ci]

$1,75939$1851.99You Save$92.60
ShippingShips on 09/24/2026
Lowest PriceLowest Price Guarantee

58 tooth Reluctor
Rotating Assembly Street Kit
  • GM LS Series 403 ci
  • 58-Tooth Reluctor
  • 4.005 in. Bore Icon Forged Flat Top Pistons
  • 4.000 in. Stroke Forged Crankshaft
  • 6.125 in. Length Forged I-Beam Rods
  • Rated for 750 HP
  • Balanced

    Crankshaft

    • 4340 forged street crank
    • Shot peened, heat treated, precision ground, ion-nitrided
    • Throws lightened
    • Lightening holes in all rod journals
    • Large radius on all journals
    • Gun drilled mains
    • Straight shot and chamfered oil holes

    Connecting Rods

    • Pro Series 4340 forged I-beam
    • Bushed wrist pin
    • 7/16 in. ARP 8740 cap screws

    Pistons

    • Icon FHR
    • 4032 forged aluminum
    • Flat top -4 cc volume
    • Compression ratio: 64.5 cc - 11.9 ; 70 cc - 11.2
    • Coated

    Bearings

    • Clevite H-Series Rod and Main bearings
    • Part TypeEngine Rotating Assembly Kit
    BrandSCAT
    Package Height14.0
    Package Width19.0
    Package Length26.0
    Weight92.0 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part Number1-43706BI
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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    Some parts are not legal for use in California or other states with similar laws / regulations
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