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Callies BBC 4340 Forged Magnum Crank - 4.750 Stroke

Callies BBC 4340 Forged Magnum Crank - 4.750 Stroke

CALBBS42B-MG (7 in stock)

Callies

Regular price €3.170,95 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

Brand
Callies
Part Number
BBS-42B-MG
Product Line
Magnum
Lightened
Yes
Weight
71.8 lbs
1 / 2 Piece Rear Main Seal
2-Piece
Nitrided
Yes
Gun Drilled
Yes
Stroke
4.750 in
Main Journal Diameter
2.750 in
Rod Journal Diameter
2.200 in
Narrowed Bearings Required
Yes
Intended Balance
Internal
Minimum Rod Length
6.700 in
Snout Style
Standard
Counterweight Location
Center
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