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Crankshaft Options



4.125" Stroke, Internal Balance, Forged 4340 Steel, Chevrolet Ls9

EAGLE  |  Part# CRS-442541256100


9 in stock

Southaven, MS

Important Crankshaft must be balanced to match your specific rods and pistons.


Highlights:

  • material: forged 4340 steel
  • intended balance: internal
  • target bobweight: 1800g
  • stroke: 4.125"
  • rod journal: 2.100"
  • rod journal width: 1.900"
  • main journals: 2.559"
  • minimum rod length: 6.125"
  • typical weight: 59 lbs.
  • rear seal diameter: call
  • snout diameter: 1.48"
  • flywheel bolts: 9
  • pilot bore diameter: call
  • flywheel register diameter: call
Prop 65 Warning

FORGED 4340 STEEL CRANK - CHEVROLET LS9, 4.125" STROKE

$1,138.99




Eagle forged 4340 steel cranks feature a non-twist forging, .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface, & micropolished to < 2 ra. Intended for the most demanding applications. Includes 58 tooth LS9 reluctor.



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  · Chevrolet » LS9 » Crankshafts » Forged 4340 Steel » 4.125" stroke » 2.1" rod journals