Product
Crankshaft, Magnum, 4.000 in Stroke, Internal Balance, Forged Steel, 2-Piece Seal, Big Block Chevy, Each
Brand
Callies has been producing high-performance crankshafts since 1989. Their state-of-the-art modeling and CNC machining centers allows Callies to offer some of the highest quality crankshafts, connecting rods, and camshaft cores available on the market today.
Product Information
Alternate Description
BBC 4340 FORGED MAGNUM CRANK - 4.000 STROKE
Part Number
CALBBO42B-MG
Vendor Part Number
BBO-42B-MG
UPC Code
Package Weight
71.85 lbs 32.59 kg
Package Length
31.8 in 80.77 cm
Package Width
9.7 in 24.64 cm
Package Height
9.5 in 24.13 cm
Product Key Attributes
Product Line
Magnum
Lightened
Yes
1 / 2 Piece Rear Main Seal
2-Piece
Nitrided
Yes
Gun Drilled
Yes
Stroke
4.000 in
Main Journal Diameter
2.750 in
Rod Journal Diameter
2.200 in
Narrowed Bearings Required
Yes
Intended Balance
Internal
Minimum Rod Length
6.385 in
Snout Style
Standard
Counterweight Quantity
8
Balancer Bolt Thread
1/2-20 in
Crankshaft Key Quantity
2
Flexplate / Flywheel Mounting Bolt Quantity
6
Alloy
4340
Material Style
Forged
Material
Steel
Color
Natural
Finish
Natural
Quantity
Each
