6.75" 455" Oldsmobile Race Damper

The #503 race dampers for the Oldsmobile 455 engines feature an BBC 6-bolt pulley pattern and female 2.275" BBC pulley register (An adapter to convert to an Olds male pulley register is available under part #503-10). The #503 race damper is designed for use with an afermarket crankshaft that has been internally balanced.

• Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.