Track OrderOrder Status & ReturnsHelpGift CardsHelpHelp CenterPhone1-800-345-4545
Shop by Category

Most Popular

Restoration

Shop All Categories

Shop New ProductsShop ALL BrandsTech ArticlesDeals
MY ACCOUNT
Order Status & Returns
CONTACT USHELP CENTER
Logo
Cart0
$000
Standard Weight 4340 Steel Crankshaft Chevy Small Block
InfoVehicle Info Needed
SCATPART NUMBER: 942-440056

Standard Weight 4340 Steel Crankshaft Chevy Small Block

$98799$1039.99You Save$52.00
ShippingShips on 09/25/2026
Lowest PriceLowest Price Guarantee

Chevy Small Block
  • 400 Main Journals
  • 2-Piece Rear Main Seal
      • Standard Weight 4340 Steel Crankshaft
    • Chevy Small Block
    • 400 Main Journals
    • 2-Piece Rear Main Seal
    • 3.750'' Stroke for use with 6.000'' Rod
    • 2.100" Rod Pin Diameter
    • Internal Balance
    • 55 lbs.
    Part TypeCrankshaft
    BrandSCAT
    Package Height9.0
    Package Width10.0
    Package Length26.0
    Weight55.0 PG
    Weight54 lb (24.49 kg)
    Part CategoryPerformance Parts
    Crankshaft MaterialForged 4340 steel
    Rod Journal Diameter2.1 in (53.3 mm)
    LightenedNo
    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 Stroke3.75 in (95.25 mm)
    Vendor Part Number4-400-3750-6000
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    Performance Main Bearing Set Small Block Chevy (Large Journal)

    JEGS

    Performance Main Bearing Set Small Block Chevy (Large Journal)

    Part Number : 555-25010
    $2699$29.99
    You Save$3.00
    Performance Main Bearing Set Small Block Chevy (Large Journal)

    JEGS

    Performance Main Bearing Set Small Block Chevy (Large Journal)

    Part Number : 555-25011
    $2609$28.99
    You Save$2.90
    Performance Main Bearing Set Small Block Chevy (Large Journal)

    JEGS

    Performance Main Bearing Set Small Block Chevy (Large Journal)

    Part Number : 555-25012
    $2599$28.09
    You Save$2.10
    Performance Main Bearing Set Small Block Chevy (Large Journal)

    JEGS

    Performance Main Bearing Set Small Block Chevy (Large Journal)

    Part Number : 555-25013
    $2599$28.99
    You Save$3.00
    High-Performance Main Bearing Set Small Block Chevy (Large Journal)

    JEGS

    High-Performance Main Bearing Set Small Block Chevy (Large Journal)

    Part Number : 555-25015
    $6699$73.99
    You Save$7.00
    Engine Assembly Lube [4 oz. Bottle]

    JEGS

    Engine Assembly Lube [4 oz. Bottle]

    Part Number : 555-28000
    $589$6.99
    You Save$1.10
    Break-In/Engine Oil Supplement [12 oz. Bottle]

    JEGS

    Break-In/Engine Oil Supplement [12 oz. Bottle]

    Part Number : 555-28060
    $1009$11.99
    You Save$1.90
    Head and Crank Storage Bag 35" L x 10" W x 9" H

    JEGS

    Head and Crank Storage Bag 35" L x 10" W x 9" H

    Part Number : 555-80018
    $579$6.99
    You Save$1.20
    Plastigauge Kit

    JEGS

    Plastigauge Kit

    Part Number : 555-80593
    $1499$16.99
    You Save$2.00
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!