Description
Engineered for severe-duty performance and competition environments, Callies crankshafts for the Gen IV LS platform offer outstanding structural integrity and fatigue resistance. Forged from high-grade 4330 steel, this crankshaft delivers superior core strength and fracture toughness over standard 4340 forgings, making it an ideal choice for high-boost, high-RPM, and heavy nitrous applications. With a 3.750" stroke, it enables optimized intermediate displacement configurations while maintaining excellent rod angles and crankcase clearances.
| Specification | Detail |
|---|---|
| Engine Platform | GM Gen IV LS Series |
| Material | Forged 4330 Steel |
| Rear Main Seal | 1-Piece Seal |
| Stroke | 3.750" |
| Main Journal Diameter | 2.559" |
| Rod Journal Diameter | 2.100" |
Features:
- Precision forged from premium 4330 alloy steel for maximum tensile strength and fatigue life
- Versatile 3.750" stroke length tailored for optimized displacement and high-RPM reliability
- Precision ground and micro-polished 2.559" main and 2.100" rod journals for maximum oil film retention and bearing durability
- Compatible with standard 1-piece rear main seal Gen IV LS blocks (LS2, LS3, LS7, L99, LSA, etc.)
- Engineered specifically to endure high cylinder pressures in forced induction and race applications
Details
Shipping Information
- H12.00"
