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Lunati Signature Series 4.000" Crankshaft 58x

Forged 4340 Crankshafts
4.000" Stroke
6.100" or Longer Rod Length
2.100" Rod Journal
Balancing Options Available
58-Tooth Reluctor
Sold Each
Please Call for Availability


Signature Series Crankshaft. All rod journals are drilled with either a 7/8" or 3/4" lightening hole to reduce the inertia weight of the crankshaft. All journal radiuses are ground to .125", roundness of each journal is .0001" or less. Pulsed Plasma Nitride Heat Treated for increased strength and durability. Micropolished journals. Proven to withstand over 1500 horsepower applications.

Stroke: 4.000"
Main Bearing O.D.: 2.559"
Rod Journal O.D.: 2.100"
Minimum Rod Length: 6.125"
Rod Journal Width: 1.900"
Connecting Rod: LS Rod

58 Tooth Reluctor
All Lunati crankshafts MUST use narrow or chamfered main & rod bearings.


Rear Main Seal Style: 1-piece
Engine Stroke (in): 4.000 in.
Crankshaft Material: Forged 4340 steel
Engine Balance: Internal
Reluctor Wheel Tooth Quantity: 58
Lightened: No
Requires Narrow Bearings: Yes
Rod Bearings Included: No
Main Bearings Included: No
Rod Journal Diameter (in): 2.100 in.
Main Journal Diameter (in): 2.559 in.
Balancer Bolt Thread Size: M16-2.0mm
Crankshaft Snout Style: Standard
Weight: 54 lbs.
Notes: 24 tooth reluctor. Short snout.


Shipping Information

  • Item Requires Shipping
  • 60.0 lbs.

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