Callies - BBB-42B-MG
Crankshaft - Magnum - 4.375 in Stroke - Internal Balance - Forged Steel - 2-Piece Seal - Big Block Chevy - Each
Magnum BBC Crankshaft: Stroke 4.375, Main 2.750, Pin 2.200, Cammed for Rod Length 6.535. Gun drilled mains, all rod journals lightened, Dual linear post keyways. Heat Treatment = Ultra Case Deep Nitride.
Cammed for Rod Length: 6.535
Engine Stroke: 4.375
Main Journal Diameter: 2.75
Pins: 2.2
