Callies BBC 4340 Forged Magnum Crank - 4.375 Stroke
CALBBB42B-MG (5 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 - 4.375 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Big Block Chevy - Each - MPN: BBB-42B-MG
Specifications
| Brand | Callies |
| Part Number | BBB42B-MG |
|
Product Line
|
Magnum
|
|
Lightened
|
Yes
|
|
1 / 2 Piece Rear Main Seal
|
2-Piece
|
|
Gun Drilled
|
Yes
|
|
Stroke
|
4.375 in
|
|
Main Journal Diameter
|
2.750 in
|
|
Rod Journal Diameter
|
2.200 in
|
|
Narrowed Bearings Required
|
Yes
|
|
Intended Balance
|
Internal
|
|
Minimum Rod Length
|
6.535 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
|