Coast High Performance | (310) 784 1010 | The Home Of Pure Horsepower

  Home > Harmonic Balancers > Chevrolet - Big Block V8 >

PRO/SPORT Damper - Chevy 396-427
PRO/SPORT Damper - Chevy 396-427

Image may be a representation of product. While we try to get as close as possible to the exact part, it is not always possible.


Call For Price and Availability!

Technical Specs

PRO/SPORT Harmonic Dampers feature :

  • Meets SFI Spec. #18.1
  • Spin tested to 12,500 rpm
  • Fully machined from high quality carbon steel
  • Retained outer inertia ring
  • 60° of permanently engraved timing marks (40° on SB Ford models)
  • Pressure bonded elastomer
  • Accurately balanced
  • Removable counterweights on externally balanced models

The PRO/SPORT Damper

Specialist Harmonic Damper manufacturer, PRO/RACE Performance Products, is introducing the new PRO/SPORT line of SFI dampers! Harmonic Dampers play a vital role to ensure longevity of engines and crankshafts, and are arguably the most important external component of an engine. Harmonic Dampers protect against harmful engine harmonic vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Why trust dampers from any other manufacturer, when PRO/SPORT Harmonic Dampers are engineered with more than 20 years of SFI damper manufacturing experience.

The PRO/SPORT range of Harmonic Dampers provides race quality performance dampers at near replacement part prices and are available for most popular V8 engines. Designed as a direct replacement of our OE damper, the PRO/SPORT Harmonic Damper has many features which exceed OE requirements! Manufactured to the quality standards you have come to expect from a specialist Damper manufacturer, the new PRO/SPORT SFI Harmonic Dampers are produced from quality carbon steel, with mechanical properties exceeding the stringent SFI Spec. #18.1 requirements! Spin tested to 12,500 rpm for one hour to comply with SFI Spec. #18.1, so when your racing needs require SFI certification, the PRO/SPORT Harmonic Damper is ready for the track.

Machined to exacting tolerances and assembled using pressure bonded elastomer technology of tried and proven design for optimum damping performance! The outer inertia ring is retained by a robust retention plate secured by 6 high tensile bolts to ensure maximum safety of the product. Extremely accurate and easy to read permanently engraved timing marks make engine timing easy, and 90° marks simplify valve timing operations (except SB Ford models).

For more videos, check out our Coast High Performance/Custom Performance Engines YouTube pages. Click below

Harmonic Balancers > Chevrolet - Big Block V8
Make > Chevy