Crankshaft Material: Cast steel. Part Type: Crankshaft. Crankshaft Snout Style: Standard. These Speedmaster crankshafts are precision-ground and micro-polished to exacting tolerances. Product Line: Cast Nodular Iron.
Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext
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