HarmonicDampers.com - American Made, Professional Grade, Performance Harmonic Dampers

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Blower Special Oldsmobile V8 External Balance Harmonic Damper


Available Options:

Select Second Keyway Size

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  • Description
  • Inventory Details
  • Fits Oldsmobile Gen II V8 with Stock Timing Cover
  • Blower Special with 6-Bolt 2.80" Bolt Circle Pattern & 2" Register
  • The added side load created by driving most superchargers adds a great deal of stress to the harmonic damper and crank snout (pulling on the damper). A stock-dimension Oldsmobile V8 harmonic damper can split in the keyways when driving a supercharger. Increasing the O.D. of the harmonic damper where it passes through the oil seal provides a great improvement in strength for the damper and crankshaft. A 2.250" oil seal dimension is used on this damper to increase strength where it is needed most.
  • Requires Larger I.D. SKF part number 22328 Oil Seal (fits stock timing cover)
  • External Balance
  • 6.6" O.D.
  • 3.19" Overall Length
  • 8.8 lbs. Gross Weight
  • Billet Steel Construction
  • SFI 18.1 Certified
  • Dual Keyways Available: Select either 1/4", 3/16", or No Second Keyway
  • Part Number: OL-EB-7-BSP
  • Shipping Weight: 11lbs
  • Manufactured by: BHJ Dynamics

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