Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext These retainers are available in

These retainers are available in a variety of lock angles and sizes to suit your needs

and include the sealing ring

2 SFI Approved and will withstand the extreme power and rpm of your performance application

The right choice is critical for your engine and your wallet--choose Speedmaster iron distributor gears

Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext These retainers are available inThese 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.