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Made in USA
Forged Short Block Assembly 496ci BB-Chevy
InfoVehicle Info Needed
BLUEPRINT ENGINESPART NUMBER: 138-BP4960

Forged Short Block Assembly 496ci BB-Chevy

$4,29999
Truck Freight
ShippingShips on Sep 15, 2026
Lowest PriceLowest Price Guarantee

Chevy Big Block
Forged Short Block Assembly
  • 496ci BB-Chevy
  • 2-Bolt Main
  • Forged Flat Top Pistons

    Block

    • 2 Bolt Main .060 over block, two piece rear seal, drivers side dipstick
    • Square and parallel decked
    • Align honed main bearing bore
    • Cylinders honed on computer controlled machine to within .0002
    • straightness and roundness
    • Cylinders are sonic tested for thickness

    Rotating Assembly

    • New SCAT cast steel crankshaft internally balanced
    • New SCAT 4340 forged connecting rods
    • 150,000 psi rod bolts
    • Forged Flat Top Pistons
    • Hastings moly rings
    • Rotating assembly balanced to within 2 grams
    • These engines require neutral balance balancers and flywheels
    • Part TypeShort Block
    BrandBLUEPRINT ENGINES
    Package Height20.0
    Package Width20.0
    Package Length20.0
    Weight357.0 PG
    Part CategoryPerformance Parts
    Main Journal Type454 mains
    Crankshaft MaterialCast steel
    Engine Block MaterialCast iron
    Connecting Rod MaterialForged 4340 steel
    Harmonic Balancer IncludedNo
    QuantitySold individually
    Flexplate IncludedNo
    AssembledYes
    Connecting Rod Beam StyleI-beam
    Main Bolt Style2-bolt
    Deck Height9.8 in (248.92 mm)
    Flywheel IncludedNo
    Engine BalanceInternal
    Camshaft IncludedNo
    Rear Main Seal Style2-piece
    Short Block Piston StyleFlat top
    Piston MaterialForged aluminum
    Oil Pan IncludedNo
    Timing Cover IncludedNo
    Vendor Part NumberBP4960
    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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