Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext Designed for Speedmaster starters

Designed for Speedmaster starters

Try using Speedmaster steel crankshaft pulleys to increase horsepower and reduce accessory drag

low-resistance

Speedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals

and have a maximum pressure of 7 psi with an externally accessible pressure relief valve

Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext Designed for Speedmaster startersThese Speedmaster cast crankshafts are perfect for mildly built street engines or just to replace stock crankshafts that have seen better days. These Speedmaster crankshafts are precision ground and micro polished to exacting tolerances.