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    IW-503 6.75" DIA 455 OLDSMOBILE RACE DAMPER

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      Purchase IW-503 6.75" DIA 455 OLDSMOBILE RACE DAMPER

      SKU: IW-503
      IW-503 6.75" DIA 455 OLDSMOBILE RACE DAMPER

      $528.00

       


      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.

      • Outer Diameter: 6.75″
      • Weight: 7.4 lbs
      • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.


      Double 1/4" Keyway Add On

      Dual  1/4" Keyways (Requires a Blower/Super Duty Hub or BBC Crank Snout) Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

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      Oldsmobile Race Pulley Adapter #503-10 

      This BBC to Olds Pulley Register Adapter will adapt from a Female BBC pulley register to a Male 2.300" Olds pulley register.