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Big Block Chevy Forged 4340 Steel Crankshaft [4.250 in. Stroke]
InfoVehicle Info Needed
BRODIXPART NUMBER: 158-C45442506385

Big Block Chevy Forged 4340 Steel Crankshaft [4.250 in. Stroke]

$1,16699
ShippingShips on 09/23/2026
Lowest PriceLowest Price Guarantee

Chevy Big Block
Forged
    Forged 4340 Steel Crankshaft
  • Big Block Chevy
  • 2-Piece Rear Main Seal
  • 4.250 in. Stroke
  • 6.385 in. Minimum Rod Length
  • 2.750 in. Main Journal
  • 2.200 in. Rod Journal
  • 76 lbs.
  • 2300 Bobweight
  • Internal Balance

    Brodix C45442506385 forged crankshaft is manufactured using 4340 steel to provide durability and strength. Designed for Big Block Chevy engines with a 4.250 in. stroke and using a minimum length 6.385 in. connecting rod. These cranks have undergone a deep nitride, shot-peened, magnafluxed, micro-polishing, and stress relieving treatment for a top-quality product.

Part TypeCrankshaft
BrandBRODIX
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Rod Journal Diameter2.2 in (55.9 mm)
Main Journal Diameter2.749 in (69.825 mm)
LightenedNo
QuantitySold individually
Crankshaft Snout StyleStandard
Balancer Bolt Thread Size1/2-20 in.
Main Bearings IncludedNo
Engine BalanceInternal
Rod Bearings IncludedNo
Rear Main Seal Style2-piece
Requires Narrow BearingsNo
Part FitmentSemi Universal
Engine Stroke4.25 in (107.95 mm)
Vendor Part NumberBR C45442506385
Package Qty1
Package TypeEA
No Questions
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