Description
After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra-pure AISI 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a crankshaft with unsurpassed wear and strength characteristics. All Magnum cranks feature Callies Ultra-Case heat treatment. Each Magnum crank will have gun-drilled mains and profiled counterweights, regardless of engine type.
| Specification | Detail |
|---|---|
| Engine | GM Gen V LT (Wet Sump) |
| Material | Forged 4340 Steel |
| Rear Main Seal | 1-Piece |
| Stroke | 4.000" |
| Rod Length | 6.125" |
| Rod Journal | 2.100" |
Features:
- Magnums are sold counterweight prepped for a 1785 bobweight
- Gun-drilled mains
- All rod journals lightened
- Dual linear post keyways
- Heat Treatment: Ultra-Case deep nitride
- Average weight for 4.000 in. stroke balanced to 1750g bobweight: ~47 lbs.
Details
Shipping Information
- H12.00"
