Callies Magnum Crankshaft - SB Chevy - 3.800" Stroke - 2.100" Pin - 400 Main 2.648" Steering U-Joint GM Transmission Inlet

GM Transmission Inlet

400 FP 1004

and detailed installation instructions

Willys / KB

Triple Pass

Callies Magnum Crankshaft - SB Chevy - 3.800" Stroke - 2.100" Pin - 400 Main 2.648" Steering U-Joint GM Transmission InletA combined effort by Callies CNC programming and engineering staffs has resulted in a component that is distinctive and highly functional. Unique counterweight and rod arm contours produce a lightweight, aero efficient crankshaft. Callies Series II Mangnum Mass Correct counterweights have been placed specifically to reduce bearing loads. By concentrating mass at the point of imbalance, the transfer of rotating and reciprocating assembly weight loads