Callies Magnum Crankshaft - SB Chevy - 3.750" Stroke - 2.100" Pin - 350 Main 2.448" STBSB2LABK Filler Bung

Filler Bung

1975-1980 Chevrolet C10 Suburban

2 in Extension

Provides cushion for the knees when accessing cargo in the truck bed

100'' intake valves and 1

Callies Magnum Crankshaft - SB Chevy - 3.750" Stroke - 2.100" Pin - 350 Main 2.448" STBSB2LABK Filler BungA 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