Callies BBC crankshaft 4.250 stroke 4340 forged magnum crankshaft
- Big Block Chevy Crankshaft
- Internal Balence
- 4.250 Stroke
- 2.200 Rod Journal
- 4340 Forged Magnum
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Lightened
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Yes
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Weight
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71 lbs
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1 / 2 Piece Rear Main Seal
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2-Piece
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Nitrided
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Yes
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Gun Drilled
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Yes
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Stroke
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4.250 in
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Main Journal Diameter
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2.750 in
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Rod Journal Diameter
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2.200 in
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Narrowed Bearings Required
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Yes
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Intended Balance
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Internal
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Minimum Rod Length
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6.385 in
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Snout Style
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Standard
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Counterweight Quantity
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8
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Balancer Bolt Thread
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1/2-20 in
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Crankshaft Key Quantity
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2
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Flexplate / Flywheel Mounting Bolt Quantity
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6
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Alloy
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4340
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Material Style
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Forged
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Material
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Steel
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Color
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Natural
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Finish
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Natural
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Quantity
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Each
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