917783 7.07 in. Harmonic Damper - SFI 18.1 Certified for Small Block Chevy

This inertia weight has six ( 2-ring design) or eight ( 3-ring design) computer machined grooves to retain the proper durometer O-rings ( dyno tested for each application).ATI SB Chevy 7.074 Harmonic Damper - SFI 18.1 Certified 917783ATI SB Chevy 7.074 Harmonic Damper - SFI 18.1 Certified 917783 at low everyday prices.Our products are assured for high quality and standard. Our products are designed with the up to date designs and creativity. We always work towards to fulfill the requirements from ATI Performance Products including ATI Performance Products Harmonic Balancers - SB Chevy. The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines. Features Small Block Chevrolet V8. Steel Shell. Internal Balance. Laser engraved 360 timing marks. Tunable, rebuildable, and extremely efficient at ALL RPM. OEM equipment on ZZ572 GM Crate Engines. Black zinc chromate finished. Exceeds SFI 18.1 Certified 18.1 specs. Compatibility SB Chevy. Specifications Size: 7.07 in..