Specification
Brand
Callies
Item Number
CALSAK21A-MG
Stroke
3.800 inches
Main Journal Diameter
2.449 inches
Rod Journal Diameter
2.100 inches
Rear Main Seal
2-Piece
Material
4340 Forged Steel
Balance Type
Internal
Heat Treatment
Ultra-Case Nitride Process
Features
Gun-Drilled Mains, Fully Profiled Counterweights
Description
The Callies SBC 4340 Forged Magnum Crankshaft with a 3.800-inch stroke is engineered for high-performance Small Block Chevy engines. Crafted from ultra-pure AISI 4340 steel, this crankshaft undergoes multiple heat treatments, including the Ultra-Case nitride process, resulting in exceptional strength and wear resistance. Features include gun-drilled mains, fully profiled counterweights, and an internal balance design, ensuring durability and optimal performance. Ideal for competition use, this crankshaft is a testament to Callies' commitment to quality and innovation.
Disclaimer
This product can expose you to chemicals known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.