Callies BBS-42B-MG BBC 4340 Forged Magnum Crankshaft with 4.75 Inch Stroke, Internal Balance

The Callies BBS-42B-MG forged Magnum crankshaft is designed for high-performance big block Chevy engines. Crafted from durable 4340 forged steel, this crankshaft features a 4.750-inch stroke and internal weight balancing to ensure smooth operation and reliable power output. Its two-piece rear main seal enhances sealing efficiency and ease of installation, making it suitable for racing, street, and custom applications. The precision manufacturing and quality materials provide excellent durability under demanding conditions, making it an ideal choice for engine builders seeking performance and longevity. This crankshaft is compatible with a variety of high-performance big block Chevy engine builds, delivering consistent performance and strength. Each unit is sold individually, ensuring you receive a precisely machined component tailored for demanding automotive projects.

Features:

• Material: Forged 4340 steel for strength and durability

• Stroke Length: 4.750 inches for high-performance applications

• Internal Balance: Ensures smooth engine operation

• Seal Type: Two-piece rear main seal for improved sealing and installation

• Application: Designed for big block Chevy engines with high power demands