Description
Engineered for elite racing programs and maximum-effort LS builds, Callies Ultra Billet crankshafts represent the pinnacle of rotating assembly craftsmanship. Each Ultra Billet shaft is fully CNC machined from premium TimkenSteel 4330 alloy steel, providing unmatched tensile strength, fatigue resistance, and structural integrity under severe cylinder pressures. Featuring Callies' signature Ultra-Shed counterweight profiling and an Aero-Shed super-finished surface, these crankshafts slice through crankcase atmosphere to reduce windage loss, shed oil efficiently, and deliver race-winning reliability straight out of the box.
| Specification | Detail |
|---|---|
| Engine Platform | GM LS Series |
| Series | Callies Ultra Billet |
| Material | TimkenSteel 4330 Billet Alloy Steel |
| Stroke | 3.625" (Stock LS Dimension) |
| Main Journal Diameter | 2.559" |
| Rod Journal (Pin) Diameter | 2.100" |
| Reluctor Wheel | 24x |
| Balancing | Sold Complete with No-Drill Balance |
Features:
- Precision machined exclusively from TimkenSteel 4330 billet alloy steel
- Sold complete with factory no-drill balancing for seamless engine assembly
- Aero-efficient Ultra-Shed counterweight profiling minimizes windage drag
- Comprehensive Aero-Shed super finishing enhances oil release and reduces friction
- Equipped with an installed 24-tooth (24x) reluctor wheel for early LS ECM compatibility
- Precision ground and micro-polished 2.559" mains and 2.100" rod journals for superior bearing longevity
Details
Shipping Information
- H12.00"
