Buy Callies BBC 4340 Forged Magnum Crank - 4.250 Stroke, Model CALBBP42B-MG online. Engines and Components,Engines And Components
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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 - 4.250 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Big Block Chevy - Each - MPN: BBP42B-MG
Brand | Callies |
Part Number | BBP42B-MG |
Product Line | Magnum |
Lightened | Yes |
Weight | 71 lbs |
1 / 2 Piece Rear Main Seal | 2-Piece |
Nitrided | Yes |
Gun Drilled | Yes |
Stroke | 4.250 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 |