LUNATI Crankshaft, Signature Series, 4.500" Stroke, Internal Balance, Forged Steel, 2 Piece Seal, Big Block Chevy, Ea
Crankshaft, Signature Series, 4.500" Stroke, Internal Balance, Forged Steel, 2 Piece Seal, Big Block Chevy, Each 454 Mains, 6.535 Rod Per vendor if this is ordered with a double keyway and used on blower applications, it will not be covered under warranty if snout twists off. The customer must purchase a crank designed for blowers.
Product Line
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Signature Series
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Lightened
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Yes
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1 / 2 Piece Rear Main Seal
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2-Piece
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Heat Treated
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Yes
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Nitrided
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Yes
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Stroke (in)
|
4.500 in
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Main Journal Diameter
|
2.750 in
|
Rod Journal Diameter
|
2.200 in
|
Journal Radius
|
0.125 in
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Narrowed Bearings Required
|
Yes
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Intended Balance
|
Internal
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Minimum Rod Length
|
6.535 in
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Snout Style
|
Standard
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Balancer Bolt Thread
|
1/2-20 in
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Crankshaft Key Quantity
|
1
|
Flexplate / Flywheel Mounting Bolt Quantity
|
6
|
Alloy
|
4340
|
Material Style
|
Forged
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Material
|
Steel
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Color
|
Natural
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Finish
|
Natural
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Quantity
|
Each
|
|