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Speedmaster Harmonic Damper Bolt and Washer Small Block Chevy 350

746-PCE292.1001


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Harmonic Damper Bolt and Washer Small Block Chevy 350
$8.20
Harmonic Damper Bolt and Washer
  • Small Block Chevy 350
  • Thread Size: 7/16"-20
  • Underhead Length: 2.470"
  • 12-Point Head
  • Strength: 200,000 psi
  • Chromoly
  • Black Oxide Finish
  • Each
  • Estimated to ship direct from manufacturer on 05/28/24 , pending manufacturer availability. Learn More
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    PCE292.1001 - Speedmaster Harmonic Dampers is rated 3.0 out of 5 by 2.
    Rated 5 out of 5 by from great product works great on a stock engines. Only problem is with speedmasters order site. cannot order parts on line from it.
    Date published: 2015-11-24
    Rated 1 out of 5 by from Poor strength Installed on new SBC and attempted to torque bolt to 60lbs. Felt like bolt wasn’t tightening so thought balancer wasn’t bottomed out. Gave it a little more turn and bolt broke before torque wrench clicked. Picture shows bolt stretched then broke, definitely not a hardened bolt because hardened steel doesn’t stretch. Luckily I was able to get broken part out of the crankshaft with my fingers.
    Date published: 2020-02-22
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