Callies Magnum Crankshaft - SB Chevy - 3.750" Stroke - 2.100" Pin - 350 Main 2.448" STBSB2LABK 1 certified 5-point Seat Harness

1 certified 5-point Seat Harness featuring 3"/2" adjustable (pull-down/pull-out) polyester belts

polyurethane

Filler Bung

8 AN Female O-Ring Inlet

Callies Magnum Crankshaft - SB Chevy - 3.750" Stroke - 2.100" Pin - 350 Main 2.448" STBSB2LABK 1 certified 5-point Seat HarnessA 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