Specification
Brand
Callies
Item Number
CALBBI42B-MG
Stroke
4.875 inches
Rod Journal Diameter
2.200 inches
Main Journal Diameter
2.750 inches
Material
4340 Forged Steel
Rear Main Seal
2-Piece
Engine Balance
Internal
Weight
Approximately 69 lbs
Heat Treatment
Ultra Case Deep Nitride
Counterweights
8 Full Counterweights
Rod Journal Lightening
Yes
Gun Drilled Mains
Yes
Dual Post Keyways
Yes
Description
The Callies BBC Magnum Crankshaft with a 4.875-inch stroke and 2.200-inch rod journal is engineered for high-performance Big Block Chevy applications. Crafted from 4340 forged steel, this crankshaft offers exceptional strength and durability. It features internal balancing, a 2-piece rear main seal, and is designed to enhance engine performance and reliability. Ideal for racing and high-performance street applications.
Disclaimer
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.