Callies Magnum Crankshaft - SB Chevy - 4.000" Stroke - 2.100" Pin - 400 Main 2.648" BR20031 These heads should also be

These heads should also be given strong consideration in larger street driven or marine applications up to 555ci

2009 Jeep Wrangler Rubicon

1975-1987 Chevrolet P30

CNC machined 356 aluminum casting

ALL68320 attaches to the side bell bolts on most quick change rear ends

Callies Magnum Crankshaft - SB Chevy - 4.000" Stroke - 2.100" Pin - 400 Main 2.648" BR20031 These heads should also beA 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