Callies Magnum Crankshaft - SB Chevy - 4.000" Stroke - 2.100" Pin - 400 Main 2.648" BR20031 For fuel injected applications

For fuel injected applications

This pre-filter does not restrict air flow and is made of a dry weave fabric that does not attract dirt and cleans with soap and water

With the exception of CVT fluids and Duel Clutch Fluids (DCT)

1975-1987 Chevrolet P30

Includes mount for stock headlight switch

Callies Magnum Crankshaft - SB Chevy - 4.000" Stroke - 2.100" Pin - 400 Main 2.648" BR20031 For fuel injected applicationsA 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