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Callies Ultra Billet LS Crankshaft, 4.250 Stroke, 2.100 RJ, Each

4.250 Stroke
24x or 58x Reluctor
2.100 RJ
Premium Grade Timken alloy steel
Gun drilled mains
Please Call for Availability


Callies has developed a wide range of part numbers for the continually evolving and popular LS family of engines. Any main journal, rod journal, post configuration, stroke or other specialized characteristic that you may require can be provided. Callies Ultra billet crankshafts are truly custom made to match your project.

* Stroke Range: 2.600 in – 4.600 in.
* LS1, LS7, LT1 posts are available
* 6, 8, or 9 bolt pattern flange options
* Rod Sizes: 1.850, 1.888, 2.000, 2.100, (2.200 w/sbc width) 2.200
* Main Journal Sizes: Standard LS, Iron Duke, Ford Cleveland 351
* 8 or 6 counterweight designs available
* Sold complete with no drill balance
* Aero efficient Ultra-Shed counterweight profiling is standard
* Aero-Shed super finishing included with all Ultra Billets
* All Ultra LS billets are produced from Timken 4330 alloy steel


Stroke-4.250 Main-2.559 RJ-2.100 Rod Length-6.125



Shipping Information

  • Item Requires Shipping
  • 56.0 lbs.

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