Callies BBC 4340 Forged Magnum Crank - 4.750 Stroke
CALBBS42B-MG (7 in stock)Callies
Regular price
$3,099.00
Sale
Magnum 4340 Forged Steel Crankshaft
Lightweight, durable crankshafts are made from ultra pure AISI 4340 forged steel. Crankshafts feature gun-drilled mains, fully profiled counter-weights, and have undergone exclusive Ultra-Case heat treatment. These crankshafts are available for a variety of small block and big block Chevy engines.
Crankshaft - Magnum - 4.750 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Big Block Chevy - Each - MPN: BBS-42B-MG
Specifications
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Brand
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Callies
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Part Number
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BBS-42B-MG
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Product Line
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Magnum
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Lightened
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Yes
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Weight
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71.8 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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4.750 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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6.700 in
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Snout Style
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Standard
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Counterweight Location
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Center
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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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